Occupied

"I thought I was losing my grip on reality—until she disappeared, and I realised that reality might be the one losing its grip on me."

The seatbelt sign went off somewhere above me with its little electronic chime, and a cultivated voice came over the intercom and told us that we were now free to move about the cabin, and not one word of it went into me anywhere.

That announcement has been going into my ears since I was a boy and I could not tell you what it sounds like. It is not information; it is upholstery. It sits in the same part of a man's attention as the drone of the engines and the rustle of somebody two rows up flicking through the in-flight magazine out of pure animal boredom, and it went past me that afternoon exactly as it has always gone past me.

What I was aware of was the knot.

It had not loosened. If anything it had been putting on weight since Melbourne—a hard tight coil of something sitting up underneath my sternum—and it had stopped being anxiety somewhere over the border, or had stopped being only anxiety, because anxiety comes and goes and this thing had begun to feel structural. It felt like something with load in it. Something that had been put there by somebody who had not filled in the calculations properly, and was now holding up a very great deal more than it had ever been designed to hold.

I shifted about in the seat trying to find an angle that did not make it worse, and every angle made it worse. The upholstery squeaked under me. The fabric felt strange against my back—abrasive one way and too slick the other—and I sat there in an aisle seat a few rows from the back of an aeroplane and thought, with the sort of clarity that only ever arrives when a man has no use for it, that I appeared to have lost the knack of being inside a manufactured object.

Everything had been like that since I came back through the wall. The colours were a fraction too saturated, so that the seat in front of me was a blue that no seat has any business being. The surfaces were too smooth. And every sound in that cabin arrived at me a little late and a little uncertain, as though it had come a very long way to reach me and was not entirely confident of its welcome when it got there. I was in the world. I was buckled into a seat at thirty thousand feet with a boarding pass on a telephone in my pocket, and by every measure available to anybody I was in the world.

Some part of me had not come back with the rest of me, and I did not know how long that was going to go on for, and there was nobody in the world I could ask about it.

Out through the window the sky was clear in that aching way it goes at altitude—no haze, no smoke, nothing between me and about a hundred kilometres of nothing—and there were long thin wisps of cirrus going past underneath us, catching the sun like something spun out of silver and drifting along entirely at their own pace, uninterested in every single thing that was happening below them. I looked at that for a while and hoped that some of the indifference might come in through the perspex and settle on me.

It did not. I did not really expect it to. I looked anyway.

And then the refreshment trolley started up at the front of the cabin and began its slow pilgrimage down towards me, and something in the sound of it got hold of me and would not let go.

The rattle of the thing. The clink of small bottles in their steel drawers. The little rhythmic squeak of a wheel that somebody ought to have looked at three flights ago and had not. It is the most ordinary noise on earth, and it is the noise of a system doing precisely and exactly what it has undertaken to do, on schedule, whether or not anybody is watching—and I sat there listening to it coming and understood, with a fair amount of humiliation, that I was about to do something for no reason whatever except to be able to tell myself afterwards that I had done a normal thing.

Something mundane. Something beautifully, gloriously, unimprovably mundane.

"Excuse me," I said, and it came out quieter than I had planned, and caught slightly on the way past my throat.

The flight attendant turned round with that instant professional attentiveness they have, and a quick practised smile went across her face and off again like a lamp being switched on and off in another room. Her badge said Andrea. The lettering on it was immaculate, and so were her hands, and she had the air of a woman who had said sir a great many times that week and had a great many more to get through before Sunday.

"Yes, sir?"

"Could I get a glass of wine, please?"

I was going for light. Casual. Breezy, even. And it came out of me carrying a great deal more freight than a glass of wine has any right to carry, and I looked down and discovered that both my hands were clamped round the armrests hard enough that the fingers had gone stiff and had begun, quietly, to hurt.

"Red or white?"

"White, thanks."

It made no difference at all. I was not drinking it for the flavour and I doubt she thought I was.

She tapped something into a handheld device and moved smoothly on down the aisle, and the trolley went past me with its clinking and its rattling, and I put my head back against the rest and let out a breath that was supposed to be relief and did not manage to be anything at all.

Because it was not about the alcohol, and I would like to be honest about that in so far as any man can be honest about his own motives after the event.

It was about control, or the appearance of it, which had lately come to seem like very nearly the same article. It was about making one small measurable decision inside a life that had been comprehensively lifted out of my hands by forces I could not name, could not describe, could not measure, and had no prospect whatever of stopping. I wanted to sit in a chair and ask a woman for a thing. I wanted her to bring me that thing. I wanted it to cost what the card in the seat pocket said it would cost, and I wanted every single part of the transaction to go exactly the way it was supposed to go, and to be over when it was over.

I wanted a procedure. I had wanted a procedure since Wednesday morning and nobody had been able to give me one.

I rubbed at my eyes and made myself not reach for my phone, which was in my pocket and in flight mode and had nothing on it and would not have anything on it, and knowing all three of those things did not make the wanting go away by so much as a degree.

Josh's silence had stopped being an event. That is the thing I have never been able to explain properly to anybody. It had become a condition—an ambient absence humming away underneath every thought I had, the way a refrigerator hums in a kitchen until you notice it and then you cannot hear anything else in the house. Not even the portal had got through it. Not a wall coming apart in a corridor at Melbourne Airport, not a screen standing in the dust of another world with images going past it too fast for me to hold. An unanswered message had gone into my chest four days ago and had been putting on weight in there ever since.

All round me the cabin had settled into the ordinary choreography of a flight. People flicking through magazines full of travel clichés and gadgets nobody has ever needed. Somebody murmuring to a seatmate. A man two rows up gazing out of the window with the untroubled detachment of a person watching an entire continent go past underneath him at five hundred knots and thinking about absolutely nothing at all.

And I found it maddening. I found their ease very nearly offensive, and I know precisely how that sounds, and I felt it anyway.

How could they be like that? How could they sit there so composed, so serenely and comprehensively at their ease, when everything in my own life was strung across a knife blade and had been strung there since a man with a cut on his jaw put an envelope into my hands and walked out of a laneway?

But then they were not carrying a doorway to another world in a canvas bag under the seat in front of them. They had not spent that morning putting a permanent hole in the wall of a Commonwealth facility. They had not stood on a plain of red dust under a sun that had no business at all being that colour, watching the print of their own hand fill in and disappear out of the ground, or looked into a great pane of something that was not glass while a voice with no body and no age and no direction said make your selection into the middle of their own skull.

For them it was a flight. It was a coffee, and a magazine, and a Saturday afternoon.

Andrea came back a few minutes later with a plastic cup filled very nearly to the brim with something pale, and she set it down on my tray table with a fluency that told you she had performed that precise movement, in a moving aircraft, more times than either of us could count.

"There you are, sir."

And there was warmth in it, and that is the part of the afternoon I have thought about most often since. There was no judgement anywhere in her voice, and there were no questions in it, and the smile was brief but it was not a uniform—it was the ordinary decency of a woman who has spent her working life managing the needs of strangers six miles above the ground and has not let it make her hard.

"Thanks," I said, and reached for the cup with a hand that was steadier than I had any right to expect, though not by a great deal.

I took a sip, exploratory, the way a man does with a wine he has not paid enough for to be entitled to an opinion about.

It was sharper than I had braced for. Acidic. Faintly metallic. Not unpleasant, exactly, and certainly not memorable—a sauvignon blanc decanted out of a cardboard box with a cheerful logo on the side of it and no pretensions whatsoever, and it had precisely as much nuance and personality as the chair I was sitting in.

And I did not care about any of that in the slightest.

I put half of it away in one determined swallow, which is not something I do, and the cold of it stung the back of my throat on the way down and landed in a stomach that had had nothing whatever in it since two aeroplane biscuits somewhere over Bass Strait. It was the kind of burn that gets an exhalation out of a man whether he has consented to one or not. And the warmth came up behind it slowly and reluctantly, the way an old electric heater takes the edge off a cold room without ever really warming it.

And for one blessed moment the noise in my head went down.

Not away. Never away, not once in four days. But down—the panic and the paranoia and the unanswered messages and the vanished parcel and the room with amber light in it that I had never been inside, all of it receding like a storm going out to sea. The edges of my thoughts went soft and blurred at their outlines, the way ink blurs on wet paper, and not one of them was gone and not one of them was silenced and every single one of them was suddenly and mercifully muffled enough to be endured.

The wine was working far too quickly. I knew it perfectly well and I did nothing whatever about it. I had barely eaten since the day before, and what I had eaten had been a gesture in the direction of a meal rather than a meal. I had not wanted food. I had wanted certainty, and failing certainty a sign, and failing a sign anything at all with an edge on it that a man could get his fingers round.

And so, entirely predictably, the alcohol went into the space where all of that was supposed to be, and made itself extremely comfortable in it.

By the time Andrea came back up the aisle I had drained the cup. I handed the thing back to her without thinking about it, with a small reflexive smile that felt almost embarrassing to produce after everything I had seen and everything I now knew—and which was also, I suspect, about the most human act available to me at that particular moment of my life.

The plastic had gone soft and crazed where I had been gripping it. The sides of it were buckled and ridged, like a range of low hills seen from a long way up, and the prints of my own fingers were pressed into it and had stayed there.

"Another?" she said.

One eyebrow went up, very slightly, and her hand hovered over the modest wine selection on the cart. There was no reproach in it. There was nothing in it at all except polite curiosity and the low-grade professional sympathy of a woman who has watched a great many people come quietly apart at thirty thousand feet and has learned, sensibly, not to ask anybody about any of it.

"Yes. Please."

The words got out of me before I had properly committed to them. They were instinctive—a hand going out for a rail in turbulence—and I was already nodding before the last syllable had cleared my mouth, which I noticed at the time and did nothing about.

She poured another one into a clean cup and set it neatly on the tray. "Enjoy."

Which did not sound like a suggestion. It sounded, very faintly, like encouragement.

"Thanks," I said, and had my fingers round the thing before she had finished turning away, with a quiet desperation I made no serious attempt to conceal.

The second glass laid a fog over all the exposed surfaces of me. That is the nearest I have ever got to describing it. A thin insulating haze, thick enough to blunt the sharpest of it and nowhere near thick enough to put any of it out—so that my thoughts went on flickering away chaotically at the back of the room, but draped now in something soft, with their claws smothered under a very thin veneer of manufactured calm.

And for the first time since I had boarded that aeroplane I felt something that was not a great distance from peace.

It was counterfeit. Obviously and comprehensively counterfeit, a chemical illusion conjured out of cheap fermented grapes and desperate hope, and I knew that at the time and I would have taken it in any form at all. In the storm I had been living inside, I would have clung to tranquillity if it had come to me stamped with a warning label, and I would not have asked it one single question about where it had come from.

The drone of the engines, which had been a needle in the front of my brain since Melbourne, mellowed into something that a man might conceivably sleep through. The tension went out of my spine by perhaps half an inch and stayed out. And the hurtling pace of my thoughts slowed down just enough that I could close my eyes for a moment and let the low vibration of the aircraft and the last of the warmth off the wine bleed together into something dangerously close to comfort.

Suspended between Melbourne and Adelaide—between one fractured version of my life and whatever the next one was going to turn out to be—I let myself, for one brief and entirely borrowed moment, simply be.

I put it all down. Seth's envelope. The devices in the bag against my shin. The silence out of Broken Hill. The parcel that had gone into Adelaide and had then never been lodged at all, and which had become the centre of a hole in the middle of a life that had been, up until the previous Wednesday, entirely and unremarkably comprehensible.

They would all be waiting for me when I picked them up again. I was under no illusion about that.

I put them down anyway.

"Is it really that bad?"

The voice did not so much cut through the haze as blunder straight into the middle of it, unannounced, the way a guest arrives early to a performance that is not ready for an audience—and I flinched. Visibly. Embarrassingly. My whole upper body went, in the way that a man's body goes when he is caught at something he has no business doing, and my wine-dulled senses took a moment too long to come round and face the correct direction.

I turned towards it with a sluggishness that must have been comical to watch, blinking hard, and the face beside me came slowly into focus.

A young woman. Late twenties, perhaps, though I am not to be relied upon in that department. Her features were sharply defined, and her hair was pulled back into a high ponytail, so black that it went blue where the light came off the window. She had a denim jacket on over a faded T-shirt. And she had a paperback in her lap, the spine gone soft and the corners rounded off with use, one thumb held between the pages to keep her place—and the cover of it was dark and moody, something from the suspense end of the shelf.

Of course it was.

"Sorry?" I said. It came out slowly, and thicker than I had intended, dragged through two glasses of wine and four days without proper sleep, and I gave her a faint frown that I meant as confusion and which I expect she read as discourtesy.

"The wine." She tipped her chin at the empty cup, which was still sitting in the middle of my tray table like a small crumpled monument to something. Her voice was even and entirely unhurried, and there was nothing in it whatever—and the look that came with it was not casual in any respect at all. There was an alertness in her eyes that was doing a good deal more work than the question required of it. "Or is it just the flying that's getting to you?"

And I blinked at her.

Because the question was nothing. It was harmless, and it was ordinary, and something about it caught me completely off guard—and I have worked out why since, and the answer is that it was the first time all day that another human being had spoken to me as though I were a normal man.

Just another nervous passenger. Just another unremarkable afternoon.

A laugh got out of me before I could stop it, dry and brittle and entirely involuntary, and it sounded strange in my own ears, like something arriving out of somebody else's mouth on a delay.

"No, it's not the flying," I said, and the words came tumbling out half-assembled and in the wrong order. "And the wine's fine. Just—got a lot on my mind at the moment."

She tilted her head to one side, and the earlier amusement softened into something a great deal more considered. A single strand of dark hair had come loose from the ponytail and was lying along her cheekbone, and she brushed it back without hurrying about it, and her eyes did not leave mine for a second while she did it.

"Work-related?" she said. "Or something closer to home?"

"Something along those lines."

I was being evasive and I made no great effort to hide it. My fingers had gone back to the empty cup and were turning it over, thumb to forefinger, the way a man turns an object simply in order to have something in his hands to do—and the cabin light went through the cheap plastic of it and came out the other side broken into little slips of colour, small flickers of iridescence running across the crumpled surface of the thing, and I did not care for that at all, and I looked at it a good deal longer than I should have done.

She studied me for a few seconds without saying anything.

And then, as though she had reached the end of something and put it away in a drawer, she leaned back against the headrest and folded her arms loosely across herself.

"Well," she said, at length, and her voice had gone more neutral. "Whatever it is, I hope it resolves itself. Soon."

Which is a perfectly ordinary arrangement of words. It is very nearly nothing at all. And there was something underneath the way she delivered it that I could not get hold of at the time and have not been able to put down since—something speculative, and measured, as though she had just taken my face and filed it away somewhere with a note attached to it that read observe further.

"Thanks," I said quietly, and gave her the sort of smile that is intended to close a door, because my mouth was loose and my head was slow and I did not trust myself within a hundred miles of anything true.

She gave me the smallest nod I have ever been given by anybody, and turned deliberately back to her book. Her thumb came out of the crease and went in between the pages.

And that was that.

And the silence afterwards was not awkward, which is the part I have gone back to. It was not a bad silence at all. It felt like a truce—two people who had agreed, without a single word of negotiation, to leave one another entirely alone—and I sat inside it and was quietly and rather stupidly grateful to her.

Because she had interrupted the spiral. For ninety seconds a stranger on an aeroplane had spoken to me about wine and about flying and about nothing else in the world at all, and it had anchored me to something that was not portals and not paranoia and not the paralysing unknown, and I had wanted that a great deal more than I understood at the time and would have paid for it if she had asked.

I let my breath go, slowly and deliberately, and let the hum of the engines occupy the ground where the panic had been standing. It was not a dramatic shift. It was a valve being eased open by a quarter-turn somewhere inside a system that was still under a good deal more pressure than it was rated for.

But it was something, and I took it.

I looked down at the empty cup on the tray in front of me, with its last shallow slick of gold catching the light in the bottom, and I stared into the thing for a moment with an intensity it had done nothing to earn—half expecting it, God help me, to give me something. Tea leaves. A sign. An indication of any kind at all.

It did not. Of course it did not.

And the wine was already going. That thin forgiving fog which had numbed the edges of everything for a few minutes was thinning out and lifting off, the way breath lifts off cold glass, and every single thing underneath it was still exactly where it had been and was coming back up through the gaps. The uncertainty. The fear. The low steady ache of not knowing.

And my hand went into my right trouser pocket.

I did not decide to do it, and that is what I have never been able to get round. There was no moment of choice anywhere in the whole of it. My hand simply went into the pocket where the thing had been living since Wednesday afternoon, and closed round it with an ease and a familiarity that ought to have frightened me a very great deal more than it did—and it came back up, and I laid my own Portal Key in my lap, and cradled it in an open palm.

And there it was again.

The same unassuming smoothness. The same deliberate and total absence of any detail whatsoever. No symbols on it anywhere, no interface, no seam, no marking, nothing so vulgar as a switch. It looked like the sort of thing a man finds in a drawer while looking for something else and throws out without troubling to wonder what it was.

And when I turned it over under the reading light there was no bright spot travelling across the surface of it—no gleam sliding along the curve the way a gleam slides along every other object in the whole of creation—and my eye went round it and round it and found nothing to take hold of, and my stomach did what it always did.

And it was too heavy. It was always too heavy. My hand made the same small formal complaint against the laws of physics that it had been making since a laneway in Hobart, and I sat there in an aisle seat with two glasses of wine in me and let it complain.

It looked like nothing at all.

It felt like everything.

And the sheer absurdity of the thing came up and hit me all over again. That this object—this small, featureless, ludicrously heavy nothing, lying in the palm of my hand where not one person in that cabin could see it—had carried me across a boundary that human civilisation has not yet got round to confirming the existence of. That it had put me down on a plain of red dust under an ordinary sun. That it had answered questions I had not known how to ask, and raised a hundred more in the doing of it, and had taken a single drop of blood out of my thumb on the first day and had never once asked me for anything since.

And I still could not get an answer to a text message.

The thought landed with the whole weight of the joke it was, and pressed down on my chest, and would not get off. I could walk between worlds. I had done it twice that morning, in a meeting room and in a corridor, and I had come back both times.

And I had absolutely no idea where my brother was.

And it was then that I noticed the movement at the edge of my vision.

Slow. Deliberate.

I turned my head, only a little, and understood at once that I was not alone in my contemplation.

The woman in the seat beside me—the same woman, with the paperback and the half-smile and the question about the wine—had lowered her book. She was not pretending to read any more.

Her eyes were locked on the Portal Key.

And every trace of that light dry amusement had gone out of her face. What had been curiosity had crystallised into something else entirely, something colder and a very great deal more calculating, and there was a stillness in the way she was holding herself that I had seen once before in my life and had not understood until that moment. It was not the stillness of a person at rest. It was the stillness that arrives immediately before movement.

"You might want to keep that particular item well out of sight," she said.

Softly. And her voice had changed with it. The conversational cadence had gone out of it entirely and what was left was low and deliberate and carrying the weight of knowledge rather than speculation. It was not curiosity.

It was familiarity.

Her words dropped into me the way a stone drops into water, and the rings of it went out and out and out, cold all the way. I blinked at her, honestly unsure for a second whether I had misheard her, whether the wine had bent her tone into something it was not.

But no. Her gaze was unmistakable now. She was not confused, and she was not intrigued.

She was aware.

My fingers curled round the thing before I had given them any instruction to do so, and I had it inside my fist and my fist down in my lap, and my palm was slick with sweat, and the grey material of it went warm against my skin—responding, perhaps, to my fear.

Or possibly to hers.

"What do you mean by that?" I said, and my voice had gone lower and considerably tighter than I would have chosen.

I was going for composed. Controlled. I very much suspect that I did not get there.

She glanced round that cabin—once, and quickly, with a casualness that was a good deal too casual to be casual, taking in the rows ahead of us and the galley behind and the man across the aisle with his headphones in. And then she came back to me, and she said, so quietly that I barely got it over the thrum of the engines:

"Just… trust me implicitly on this."

And my stomach tightened.

Because it was such a precisely chosen little construction. Not I'd suggest. Not if I were you. Not any one of the eleven perfectly serviceable hedged formulations that a person reaches for when they are handing unsolicited advice to a stranger on an aeroplane.

Trust me implicitly.

It was not a request. It was a directive. And she had chosen it, and she had chosen it inside about a quarter of a second, and I do not believe I have ever been more frightened by a piece of grammar.

She leaned back against the headrest with a fine show of nonchalance and returned the paperback to her lap. And her fingers were still clutching the cover of it far too tightly, and the knuckles had gone pale.

I did not respond. I could not. My heart was going again, and it was not the wine doing it now, and my head had begun turning out possibilities at a rate I had no hope of keeping up with.

So I sat there rigidly, clutching a small grey object in my own lap with both hands, as though the sheer pressure of my grip could somehow insulate it from the world.

Or from her.

Minutes went by.

I did not look at her again. I stared straight ahead at the seat back in front of me and listened to my own blood going in my ears, and to the mechanical hum of the engines, and to the restless shuffle of a pair of feet in the row behind me, and to the gentle clink of plastic cups being gathered up by hands a very long way away.

I did not ask her how she knew what it was.

I did not ask her what she might be carrying herself.

I did not ask her whether she was a friend or something a very great deal worse, which was the only question in the whole of it that actually mattered and the one I was least equipped to put to anybody.

But I knew this much: something had changed. And the questions in my head—and there were hundreds of them by then, circling and circling like birds over something dead in a paddock—had all of them, quietly, grown teeth.

And in the end I could not stand it.

That is the whole of the explanation, and it is not a good one, and I have never been able to improve on it in all the time since. The need to know—to drag one solid fact out of the shadows, to be told one true thing by one person who actually had one to give me—became larger and louder and more insistent than my own instinct for self-preservation. Against every whispered warning at the back of my skull, against my own better judgement, with a dangerous quantity of cheap wine and adrenaline and four days of accumulated desperation all working in me at once, I leaned very slightly towards her and dropped my voice to a murmur.

"Do you know what this actually is?"

Her head came round sharply.

And whatever composure she had been holding on to disintegrated in front of me the way brittle glass disintegrates under a sudden load. The mask came off, cleanly and completely and all at once, and there was nothing gradual about it.

Her eyes—which had been curious, which had been very nearly playful an hour earlier when she asked me about the wine—went hard as polished stone. Every warm note in that face left it as though it had never been in there, and a chill went down the entire length of my spine and coiled itself round each vertebra on the way, and it had nothing whatever to do with the temperature of the cabin.

"Shut up," she hissed.

It was barely a sound. Her mouth hardly moved. And the vehemence in it was precise and uncompromising and it landed on me with the flat force of a slap.

My body tensed all the way through. And her warning was not theatrical and it was not exaggerated—that got through to me even then, even drunk, even four days into the worst week of my life. She was in earnest. She was in deadly and absolute earnest, and everything in her face said so.

And it made not the slightest difference, because forbidden things have always done exactly what forbidden things do, and her urgency went into the fire of my curiosity like petrol. A dangerous cocktail of alcohol and adrenaline and mounting desperation made me reckless.

I pressed forward anyway.

"If you know something—"

"I said shut up."

Sharper, this time, and with a cold steel edge in it that went through the last of the wine haze like a wire through cheese. She shot another one of those fast flat glances round the cabin, her eyes going along the rows like a sentry going along a fence line, and then she leaned in towards me by perhaps two inches.

"Do you really want to get us both killed?"

The sentence was low and urgent and devastatingly clear, and every syllable of it struck the base of my skull like a hammer coming down on it. I froze. My throat closed round something that was not there. The blood went out of my face, and the artificial warmth that two hundred millilitres of sauvignon blanc had put into me evaporated in a single flash of icy dread.

Killed.

Not reprimanded. Not arrested. Not interrogated.

Killed.

And it was not metaphorical. I felt that with a certainty I could not have defended in front of a single living person and did not doubt for one second. Her fear was not a performance put on for a stranger. It was palpable, and it was visceral, and it was real, and it had been in her a very long time before I sat down beside her.

My first instinct was to shove the thing back into my pocket and bury it and pretend that none of this had happened—to retreat into a blissful and entirely cowardly ignorance, and get off that aeroplane, and never speak of any of it to any living soul for the remainder of my life.

And I did not do it.

Because the same part of me that had wedged a chair under a door handle in Meeting Room 4B, and had gone through into Saint Phillis, and had got onto this aeroplane with no plan whatsoever and nothing to recommend it but a stubborn refusal to stop moving—that part of me would not let go of the thing.

And underneath the fear there was a pulse of something else that I have never been comfortable putting a name to, and it was perilously close to awe.

"You've seen one of these before," I said. It was barely more than a whisper and it trembled the whole way along its length. "Haven't you?"

She did not answer me. Not out loud.

But her eyes gave me everything I needed and a good deal that I did not want. The way they locked on to mine, and what was in them—familiarity, and wariness, and, most disarming of all, pity. A silent and profoundly reluctant acknowledgement. And underneath the whole of it, a message so vivid that I did not need one word of it to be spoken aloud.

You have no idea what you are carrying.

"Please," I said, and the word cracked in the middle of itself under the weight of what was behind it. "I'm just trying to understand. I don't know what I'm doing with this thing—"

"Stop talking."

And this time it was not a warning at all. It was a command, delivered with a coldness so absolute that it put a vacuum into the eighteen inches between us, and it left no room anywhere for dissent. Her whole posture had changed. The book lay forgotten in her lap, and her fingers were clenched round its battered cover, and the whitening of the knuckles was the only part of her that was not entirely under her own control.

And before I could get another word out of my mouth she unbuckled her seatbelt with a crisp metallic click.

The movement was smooth, and almost rehearsed, and it radiated urgency out of every part of it.

"Excuse me," she said, curtly.

And not to me. It was not addressed to me at all; it was a general remark, put out into the air of an aeroplane, and everything about it signalled detachment. Distance. Finality.

I shifted quickly and angled my knees to one side to give her room, and she stepped past without hesitation and without touching me, and every movement she made was precise and composed and there was not one millimetre of it wasted anywhere.

I did not watch her immediately. Not out of any courtesy—I simply could not do it, not without turning round in my seat and making the whole thing into a performance.

But once she had cleared the row, I turned.

Her back was rigid. Her shoulders were far too straight. Her gait was too even, too regular, too carefully maintained. She was not simply walking away from me down the aisle of an aeroplane; she was managing herself. She was holding something down beneath the surface and keeping it down, and she did not want me, or anybody else in that cabin, to see so much as a flicker of it get out.

She did not glance back. Not once. Not even to check whether I was watching her, which I have thought about a great deal since, because it means that she already knew that I was.

She disappeared into the cramped lavatory at the rear of the cabin. The door clicked shut behind her, sealing her in with a finality that felt considerably more significant than a lavatory door has any business feeling.

And a second later the Occupied light above it glowed red.

I stared at it. I did not move.

The seconds that followed were mercilessly slow. I counted my own heartbeats like a metronome, my pulse hammering away in my ears. One. Two. Five. Ten.

Nothing. No movement. No return.

And then, without any warning at all, the Occupied light blinked off.

I sat upright.

The door did not open. There was no sound. There was no movement. The light was simply—off. And for a moment I thought that I had imagined the whole thing. That the aeroplane had shifted. That she had brushed the latch with an elbow, or moved inside the cubicle and triggered something without knowing it.

But the door stayed shut.

Nobody emerged.

There was no sound at all from within it.

And the light stayed off.

I stared down that cabin with my heart now thudding louder than everything else in it, and something was not right. A lavatory door does not open without opening. And it does not go from Occupied to Vacant unless somebody has stepped out through it, and nobody had stepped out through it, and I had not taken my eyes off the thing for one single second.

I waited. I tried to slow my breathing, and the world crept back in around the edges of the moment—the soft clink of plastic cutlery being collected, a baby's short cry two rows up, the faint squeak of the trolley's bad wheel going away from me. A flight attendant came past and I leaned back automatically and arranged my face into something approximating calm.

But my mind was not in the present at all. It was fixed to that door.

Still closed. Still silent.

Still… empty?

Time warped. Each second came out longer than the one before it, drawn thin as skin over bone, and my rational brain went dutifully through its whole repertoire—a malfunction, a movement, a mistake—and not one of those explanations would sit down inside the shape of the unease that was blooming in my chest.

Still no sign of her. Still no movement. Still no light.

And that was when the truth began to crystallise, slow and heavy, settling through me the way silt settles through deep water.

She was not coming out.

My pulse quickened dramatically and each beat of it was a hammer-blow. The edges of my vision drew inwards into a subtle tunnel, and a pressure began building at the back of my skull as I sat there struggling to process what I had just witnessed—or, more accurately, what I had just failed to witness. The lavatory door remained precisely as it had been since she went through it. Closed. Unremarkable. Indifferent. A bland sheet of white laminate throwing the fluorescent cabin light back at me with a mute sterility that somehow made the whole moment feel more absurd rather than less.

She will come out any second, I told myself. Any second now.

But the seconds passed. And then a minute. Then two. And the silence behind that door stretched out unnaturally long—silent, and still, and unnerving.

Perhaps she had knocked the occupancy light by accident. Perhaps she had come out and moved to another lavatory somewhere and I had contrived, somehow, to miss the whole of it. I scanned the overhead indicators, half hoping to see another Occupied light flicker into life—somewhere, anywhere, in any part of that aeroplane.

They remained stubbornly green. Uniformly, unhelpfully empty.

And the wine was certainly not helping. Its fading warmth had left behind a thin muddled fog in my thinking, and everything had taken on that faintly unreal quality that a dream takes on in the last few seconds before you come out of it. But even through that residual haze, something inside me was screaming that what was happening was not alcohol-induced confusion.

Desperate for clarity—for proof of anything tangible at all—I unbuckled my seatbelt with an audible click and rose to my feet.

The sudden movement triggered a rush of vertigo. My vision wobbled and the cabin shifted perceptibly around me and for a moment I genuinely believed my knees were going to give out underneath me. I steadied myself with one hand on the headrest in front and blinked rapidly until the tilt righted itself and the world consented to stay level.

And from that standing vantage I made myself perform a slow, deliberate scan of the entire visible cabin.

She was nowhere.

Rows of faces, every one of them absorbed in its own self-contained reality. Children dozing. A couple sharing a set of earphones. Businessmen tapping methodically at laptops, all of them entirely unaware of anything out of place. All normal. Utterly, maddeningly normal. Not one familiar silhouette anywhere among them. The ponytail. The thriller. The sharp eyes.

All gone.

And nobody else seemed to have noticed her disappearance at all.

A fresh wave of anxiety crept up my spine and into my chest as I began to move down the aisle. I walked slowly and deliberately, forcing myself to appear as inconspicuous as a man can force himself to appear when the thud of his own heartbeat is deafening him from the inside out. My palms were damp. My mouth was dry. And every footstep landed with an exaggerated weight that I could feel travelling all the way up into my knees.

A flight attendant approached from the other direction, smiling in that professionally vacant way that airline crew are trained to adopt when moving through cabin space, and she sidestepped to let me pass without a word of comment, and I offered her a polite nod I could barely muster and hoped very much that I did not look as rattled as I felt.

Then, finally, I stood before the door.

It was so absurdly ordinary. White laminate. A metal handle. A small indicator switch. The kind of door that most people walk past during a flight without thinking about it twice.

But to me it might as well have been the hatch of a pressure-sealed vault. Or the threshold to another world entirely.

I hesitated, and then I angled my ear towards it, close enough that I could feel the cold press of recycled air against my cheek, and I held my breath.

And I listened.

Nothing. Not the soft rustle of fabric. Not the creak of movement. No gurgle of plumbing, no flush, not so much as a cough.

Just the distant ever-present hum of the aircraft's engines vibrating faintly through the metal skin of the fuselage—and behind that door, a hollow silence that felt too perfect to be real.

And an almost superstitious dread took root in me then.

What if she was not in there any more? What if she had never been in there at all? What if I had imagined the entire interaction—hallucinated a woman into existence with the assistance of stress and sleeplessness and cheap sauvignon blanc, and held a conversation with her, and been warned by her, in front of two hundred people who saw nothing?

No. No.

I forced the thought away from me. She had been there. She had spoken to me. She had warned me. Her voice, and her posture, and that subtle flash of recognition when she saw what was lying in my hand—those details were far too specific and far too vivid to be the invention of a fatigued mind.

Still. Something was deeply wrong, and I could feel it in my marrow, in the static line of tension that had taken up permanent residence in the back of my neck.

Swallowing hard, I braced myself. And I reached out and pressed the handle.

The mechanism moved without resistance—no locked click, no hesitant give. The door opened smoothly, as though it had been waiting for me to get around to it.

The lavatory was empty.

I stood in the doorway, utterly still, as the oxygen seemed to drain out of my lungs.

The smell hit me first—clinical, and faintly acrid, industrial disinfectant laid over the top of stagnant water. The cramped cubicle looked precisely as one would expect it to look. A smudged mirror reflecting the harsh fluorescents. The tiny basin below it, completely dry. A bin half-lined with a wrinkled waste bag. A plastic toilet seat resting very slightly askew.

Nothing out of place. Nothing unusual anywhere in it. And no sign whatsoever that anybody had used it recently.

She was gone.

My eyes darted round that small space with every instinct I possessed screaming that there had to be some mistake in it somewhere. I dropped into a low crouch, my head spinning slightly with the movement, and I peered behind the toilet and along the sides of it, tapping gently at the plastic and the laminate surfaces with a knuckle—and then I pressed my hand flat against the mirror, half expecting it to ripple like the surface of water and reveal a hidden way out.

But the mirror offered me nothing except my own reflection. Wide-eyed. Pale. Mouth slightly agape.

There was no secret door.

No trap panel.

No logical explanation.

Nothing but me, and a sterile box of reality pretending—badly—to behave as it should.

And she was nowhere to be found.

I closed the lavatory door behind me with a slow mechanical deliberation, and the metallic click of the lock echoed unnaturally loud in that confined space, and the familiar red glow of the Occupied sign flared into life behind me—and its mundanity now felt almost perverse. I stood completely still for a moment with my back against the door, and allowed the weight of what had just transpired, or had just failed to transpire, to settle down into my bones.

She had vanished.

The reality of it pressed down with a suffocating force, as though the walls were drawing themselves inward and closing the space around me a little further with every breath I took. The air in there was thin and sterile, tinged with disinfectant and with a faint metallic tang underneath it that reminded me, unsettlingly, of blood. I could feel the vibration of the aircraft's engines coming up through the soles of my shoes—an omnipresent low-frequency hum, grounding me to a reality that I was no longer entirely certain was in operation.

I turned slowly towards the mirror, and there I was. My own hollow-eyed reflection staring back at me, flushed, dishevelled, mouth slightly parted in disbelief. The glass was tarnished a little round the edges, just enough to blur my image, so that I appeared to be watching myself from one layer of reality removed.

I barely recognised the man looking back at me.

And the Portal Key in my pocket felt heavier now. Impossibly so. Like a lead weight dragging down not merely my clothing but the entire structure of my existence. Its presence pulsed against my thigh—a silent accusation, and a question I had not the equipment to answer.

Had she used something similar?

Had she opened a portal in this tiny windowless compartment, mid-flight, and escaped not through space at all but through reality?

I found myself scanning that cramped space all over again, as though sheer willpower might conjure evidence where none existed. I checked the corners. I checked the seams in the wall panels, and the slim slot of the waste bin. I ran my fingers along the edge of the mirror and pressed gently against the ceiling and even looked behind the lid of the toilet.

It was a humiliating and entirely futile ritual, performed for no audience but myself. I wanted the absurdity of the whole thing proven wrong. I wanted a hatch, or a mechanism, or a trick—anything at all that would explain the impossible in terms that obeyed the known laws of physics.

But there was nothing.

Eventually I made myself unlock the door and step back out into the aisle, affecting the casual nonchalance of a man returning from an entirely ordinary trip to the bathroom. My steps were too measured. Too careful. My shoulders were tight. Every atom of my being was screaming with the tension of concealed panic.

No one noticed. No one looked. The cabin carried on with its steady performance of travel normality. Conversations murmured politely over folded tray tables. A child giggled somewhere behind me. The faint crinkle of a snack wrapper drifted past like static from a distant room.

I returned to my seat, dropped into it, and stared straight ahead, with the seatbelt buckle dangling uselessly against my leg.

The seat beside me—her seat—was vacant. Utterly, absolutely empty. The cushion retained only a faint impression where she had once been sitting, a shallow ghost of a presence, and I sat there and watched the foam come slowly back up out of it, and within a minute or two there was nothing left of her at all.

The paperback was gone.

I had not noticed that until then, but it too had vanished. No half-finished thriller. No dog-eared page holding her place. No trace of her existence whatsoever.

It was as if the aircraft had swallowed her whole.

Time began to stretch unnaturally again. Minutes passed—or perhaps it was only seconds, strung out and distorted under the strain of adrenaline and the fading remnants of the wine. A different flight attendant passed down the aisle, her expression blankly pleasant, and she did not so much as glance at the vacant seat.

And why would she? Nothing, apparently, had happened.

To the rest of that cabin, this seat had always been empty.

My eyes swept the rows around me with increasing desperation, scrutinising every face and every posture. But there was no trace. No flash of a black ponytail. No sidelong glance of recognition. Just more passengers reading, and scrolling, and dozing—blissfully unaware that they were sharing a sealed metal tube with somebody who had just vanished into another reality.

Or possibly with two somebodies.

I leaned back heavily in my seat, gripping the armrests until my knuckles turned white. The interior lights flickered briefly as we hit a pocket of mild turbulence, and for a split second I half expected the seat beside me to be occupied again when they steadied—pop—as though the universe had simply taken a brief misstep, a blip in the simulation, and would now quietly correct itself.

The lighting stabilised. The chair was still vacant.

Still waiting.

I reached into my pocket and wrapped my hand tightly round the Portal Key.

It felt different now. Still smooth. Still cool. But subtly changed. Its shape was the same and its weight was the same, and yet its presence had somehow become charged, as though it had been activated not merely physically but in some other register altogether. I could feel the significance of it thrumming away in the ends of my fingers.

It was not simply a device any more. It was a catalyst. A nexus. One node in an immense and unknowable system that I was only beginning to comprehend, and inside which I had apparently been standing for four days without ever once looking up.

And the idea struck me with the force of a revelation.

She must have had one, too.

There was no other logical explanation and there never had been. She had warned me. She had known. Her tone, her urgency, that pitying glance—all of it made perfect and terrifying sense in retrospect, the moment I stopped resisting it. She had not simply recognised the Portal Key.

She had recognised the consequences of possessing one. She had used it before. Perhaps frequently.

But why disappear?

Was she running from something? From somebody? Had she sensed a threat aboard that aeroplane—perhaps even, God help me, because of me?

Or worse. Had somebody, somewhere, sensed her?

I shuddered. Despite the regulated climate of that cabin I went suddenly and profoundly cold—marrow-deep cold, bone-deep cold—as though some great and ancient awareness had briefly turned its attention in our direction, and she had moved before it could finish looking.

The questions mounted with a dizzying speed. Who else knew about the devices? Were they being hunted? Collected? Replicated?

And why in God's name had Seth trusted me with one of them? What did he know about all of this that I did not?

I turned again to stare at the seat beside me. It was still just a seat. A small rectangle of foam and fabric bolted to the floor of an aeroplane thirty thousand feet above sea level, and there was nothing remarkable about it in any respect whatever.

But a few minutes earlier it had cradled somebody who could move between realities with rather less fuss than it takes to request a second glass of wine.

Now it held nothing at all but memory.

And yet—underneath the fear, and underneath the sweat and the shaking and the two grey ticks and the whole enormous unbearable accumulated weight of that week—something stirred in me that I could not put a name to. An ember of something. A thing I did not particularly want to look at directly.

Because this was not over. She had vanished, yes—but she had not vanished without purpose.

And she had not vanished without leaving me changed.

Because now, more than at any moment since a man with a cut on his jaw put an envelope into my hands in a laneway and walked away from me, I knew that I was not alone.