[OC-Series] I'm the Last Person Who Remembers the Original Timeline. I Have Four Days. | Chapter 30: No Carrier

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The fan had a new sound, and I had run out of ways to fix the old ones.

I knew its whole catalogue. The grind from the cooked bearing. The hitch every third turn where I had packed the graphite in uneven. The low strain underneath that meant the motor was pulling harder than a motor should to move a blade through air. I had built most of those sounds myself, with a mechanical pencil and the last of my patience, a long time ago by my count and almost no time at all outside, where the two clocks had nearly come together now.

The new sound was a flat scrape, once per revolution, like something had worked loose and started to drag.

I lay on the floor of the module and listened to it and did not get up right away, because getting up was expensive in a way it had not been before. The air had weight. Every motion felt like it was happening at the bottom of something, the whole depth of the water pressing down through me, and I had stopped pretending I did not know what that was. The differential had been my one advantage the entire time, the gift of long working hours for every short real minute, and it was almost spent. I could feel the bottom coming up under me. The deep part of the water was right here now, and there was no more of it below.

Under my breastbone, Sarah was still there.

That was the other fact of the room, and the better one. The scope hung off the inner port where I had clipped it, and the line ran through it into her, and I read her the way I had learned to read her months ago against the actual animal of her body. Heart rate and breath, the autonomic truth underneath whatever a person decides to show you. She was cold. She had been cold so long that her body had quit fighting it and settled in, which I knew because the shiver had gone out of her telemetry a long time back and left a flat hard endurance in its place. She was steady. She was holding.

I had stopped asking her things. It had cost me something to stop, and I had spent a lot of the time since wondering whether it was the right call. She had a list of mine she would not answer, and somewhere back there I had run the whole signal chain, ruled out every failure mode, and arrived at the only thing left, which was that her silence was on purpose and I owed it respect. So I gave it respect. I held the carrier open and let her be there and worked to keep my own noise off the line, so that reading her did not turn into leaning on her.

That last part was harder than it used to be. I had a driver on my outgoing carrier that shaped what crossed, and while it held I could send her a man who was fine. I was not fine. The work was to keep the shaping up anyway, to broadcast the even weather of a person with everything under control, and most of the time I managed it. What it cost to manage it was a thing I did not look at directly.

Over all of it, through the acrylic, through ten thousand tons of water that used to be silent, there was the tone.

It had stopped being a knock. For a long time the boundary had spoken in groans, the slow complaint of the wall as the thing outside leaned on it, each groan a separate event I could count and time and pretend to file. Then the groans had run together into one sound, flat and hard and slowly climbing, a note held by something with no need to breathe. It had not stopped since. It was rising now, the way a kettle rises, and I had no instrument to tell me what it meant, because I had taken my boundary sensor apart with my own hands and made it into the thing that let me hear Sarah. So I read the wall by ear, head against the door, and what the door told me was that the thing on the far side had changed gears and was working faster.

The scrape dragged across the tone, and I made myself get up.

The fan lived in a housing under a floor panel by the scrubber, and reaching it meant lying down on the other side and putting my arm in to the shoulder. The panel came up. The housing was warm. I got two fingers on the blade and turned it slow and found the drag on the first revolution, a catch where the shaft met the bearing seat, the metal gone rough enough to bite.

There is a repair for this. In a working facility, with a parts drawer and the right grease, it is a fifteen-minute job you do not bother to log. I had already done a version of it, the bad version, the one where you crush the graphite out of a mechanical pencil and pack a dry bearing with the dust and tell yourself it will hold. It had held, for a while. The graphite was gone. I had checked the pencil case three times, the way you check a pocket you already know is empty, on the chance the universe had quietly restocked it while I was not looking. It had not. The grease was a fiction. The solder I had spent on the antenna a long time ago. The epoxy had gone before that. I had a bearing eating itself and a toolkit that came to my own two hands and a flashlight.

McKay would have had something. Somewhere across ten seasons of television a smarter version of this exact problem always got solved in the third act by a man who talked too much, usually with a crystal and a confident lie about the laws of physics. I did not have a crystal. I had a dry bearing and the specific knowledge that a dry bearing does one thing from here, which is seize, and that when it did there would be no part two.

I worked it anyway. You do not stand over a dying system and do nothing because the manual ran out. I backed the blade off the catch and turned it the other way to see whether the rough spot had a smooth side. It did not. I dripped a little of the only liquid I had into the seat, water, knowing it would do nothing useful and might buy ninety seconds of quieter failure, and I got the panel most of the way back down.

That was when the line went out.

It did not fray. That was the first wrong thing, the thing my body knew before the rest of me did. Sarah's signal had a texture, a constant low grain of a living nervous system doing its work, and over the months I had learned that grain so completely that I felt its absence as an event, a pressure lifting that I had not known was a pressure. One moment she was under my breastbone, cold and flat and holding. The next there was a hole where she had been.

Not weaker. Gone. The scope read nothing. The space where she had been read nothing.

I came up off the floor and cracked my head on the scrubber housing and did not feel it. My hands were on the scope before I had a plan for them. I keyed the carrier, sent the four-pulse signature into the line, the old keep-alive, the are-you-there, and watched the return channel for the grain to come back.

Nothing came back.

Tabarnak.

I want to be exact about what I thought, because I have had time since to be ashamed of the order of it. I did not first think the line had dropped. I first thought she was gone. I thought the thing outside had finished, that the note climbing in my ears had climbed to wherever it was going and done what it was built to do, and that the hole under my breastbone was the hole a person leaves when they have been overwritten while you knelt on the floor packing a bearing with water. I thought I had been doing maintenance while the world ended a second time, in the one place I could still feel it end.

Then the engineer took over, the way the engineer always takes over, because the engineer is the part of me that keeps working when the rest of me cannot stand. Check the instrument before you trust the reading. I checked the scope.

The driver was modulating. My outgoing carrier was clean and shaped, telling a flat lie about how fine I was to a line with no one on it. The receive path had its noise floor, the ordinary hiss of an instrument that is powered and listening. Self-test came back green. The scope worked. The scope was doing every single thing I had rebuilt it to do.

There was just nothing in the line to read.

That is the part I keep returning to. I had spent every collapse with a thing in my hands to fix. The wall cracked and I drilled it. The pressure spiked once and I got a pipe-lever on the valve before it blew. When the fan seized I packed the bearing with pencil dust. Whatever was killing me, I could put my hands on it and make it worse more slowly, and that had been enough to keep me a person. This I could not touch. The scope was perfect and she was gone, and there was no version of taking it apart and putting it back together that changed that, because the fault was not in my room. It was somewhere out in the cold on the far side of a boundary I was the wrong side of, a place I had never seen and could not reach, and the most competent thing I have ever been able to do was the one thing that was no use at all.

I sent the signature again. I varied it. I dropped the gain and brought it back up, the way you do when you start to suspect the problem is your own ears. I pulled the scope half off the port and reseated it, knowing the connector was fine, because reseating a fine connector was an action, and action was the only part of me still running. The grain did not come back.

I have no honest count of how long. Long enough that the engineer ran out of things to check and handed me back to the part that had thought she was dead first. Long enough that I understood, in a flat way with the water pressing down through me, that this might simply be the shape of the end. That the line might have given me the last of what it had, and that I might spend the actual finish of this doing what I was doing right then, keying a four-pulse hello into a hole and getting the hole back.

The fan chose that moment to finish.

I felt it through the floor before I heard it, a change in the panel under my knees, and then the scrape stopped, and then everything stopped. The stillness was wrong. A fan that loses power coasts down. This one had stopped dead, the shaft welded into its seat by its own heat. I lifted the panel and got my fingers on the blade and it did not give, not the rough catch from before, a hard refusal. I tried it anyway. Of course I tried it. I turned until my fingers slipped, then braced and turned again, and it did not move, and I knew it was not going to move, and I had nothing to make it move with.

The scrubber could still scrub. That was the cold mercy of it. Nothing was wrong with the unit or its chemistry, and the sensor still read me a number. What I no longer had was any way to push the air through it. Without circulation the carbon dioxide would not spread out and feed itself to the scrubber. It would pool where I breathed and sit there, and the number on my one sensor would start to fall, and somewhere down that slope was the point where the arithmetic stopped being about comfort and became about how many hours I had left. I knew roughly where that point sat. I had run it once, long ago, as a hypothetical, the way you run a thing while it is still a hypothetical. Eight hours. Ten if I stayed low and still and did not push myself. I looked at the sensor. Seventy-nine. It was not falling yet. It would.

And then Sarah came back.

She came back the way she had gone, all at once, no fade. One moment the hole. The next the grain, the low living texture of her, returned to the place under my breastbone where it belonged, and I made a sound I am not going to write down.

I did not say anything after it. There was a thing my body wanted to do with the size of what I felt, and I did not do it, the way she does not do it, because doing it would have been for me and the line needed something for her. So I gave the line the only thing worth giving. I steadied. I pulled the shaped carrier back into true, the even weather, the man with the situation handled, and I put it out into her, so that the first thing she got coming back was a flat calm hand and not my fear. I am here. I have you. Go.

It cost more than it had ever cost. The driver held, most of it. A little of the real thing slipped under and crossed, I felt it go, and I could not stop all of it, and I let the small part that escaped be the price of stopping the rest.

Then I read her, and I understood what had happened on her side, or as much of it as the line would hand me.

She had been afraid, and not the way she had been afraid all night. The night-fear was long and flat, the cold and the standing and the weight of the hours. This was sharp and recent, the chemical print of a body that had just come through something and out the far side and was shaking with the fact of having survived it. Her heart ran too fast and fought to come down. Her breath caught in the specific way breath catches after you have been holding it without knowing you were. I knew that shape. I had it in my own chest at that exact moment.

She had reached into a silence too. That was what the line told me. Whatever cut us had cut us from both sides at once, and in the gap she had done what I had done, reached for me and found a hole and decided, the way I had decided, that the other one was gone. We had been afraid of the same thing across the same dark in the same moment, each of us sure we had lost the other, neither of us able to push a single word across to say I am still here, because the one thing that carried our words was the thing that had gone out.

I did not know what had done it. I want to be honest about the edge of what I knew, because I have walked past that edge before and paid for it. The tone had changed gears right before the cut. The machine had done something new. I was sure of that much, sure it was the thing outside and not a fault in my room, sure it was hers, the apparatus climbing into some faster stretch of its work. I built a story on that, and the story was that the machine had surged, had thrown something across the boundary that fouled the link for as long as it lasted, and had come within a breath of taking the line for good and might come back for the rest.

I was right that it was new. I was right that it was hers. I was wrong about what it was for, and there was a piece I did not have and did not even know to go looking for, so I aimed the whole thing the wrong way and felt clear-eyed doing it. I read the surge as pointed at me, at the boundary, at the wall I was the wrong side of. I did not read it as a thing reaching toward Sarah, because I did not know there was anything on her side for it to reach, did not know she stood on a piece of ground a field could climb, did not know the silence had come from a direction and that the direction was her. I had it turned around the whole time.

So I stayed.

That was the entire job, and it had taken me this long to understand that it was a job and not a failure. There was nothing to fix. The scope was perfect and the fan was dead and the wall was singing, and none of it was a problem I could put my hands on. The one thing in the room that still answered to me was whether I held the line steady or let it shake, whether the man who reached her stayed calm or came apart, and that was not nothing, even though every instinct I had spent thirty-four years building told me it was nothing because I could not measure it or improve it or take it apart to see how it worked.

I lay back down on the floor, low, where the air would stay breathable the longest, and I kept one hand on the scope and the carrier shaped and even, and I read her come down out of the fear by degrees. The heart slowing. The breath finding its floor. The long flat holding settling back into her like a tide returning to a mark it knew. I matched it. I gave her steady, because steady was what the reference needed, and because it was the only true thing left that I could do that helped her.

The sensor read seventy-nine. Then, a while later, by a clock that had almost no lie left in it, seventy-eight.

The tone climbed. Out there the thing that was hers kept doing work I had the purpose of wrong. Out there she held a line open and would not tell me what she knew, and I had stopped asking. And down here I lay still and breathed shallow and made myself the one steady point she could measure against, and waited to learn whether the silence would come again, and whether the next time it would be the kind that did not end.

I did not let go. There was nothing left to let go of except her, and she would not let me, and I had finally stopped trying.