Page 2 of The Atom Between Us

The Geiger counter on the main console is still ticking, but now I swear it’s louder. Or maybe I’m just letting it have more of my attention, now that the immediate threat of waking up dead has receded into a background murmur. The counter pulses steadily, an electronic heartbeat. I can’t remember when I learned to read the difference between casual background and acute, but I don’t need to. I know it the way I know how to pull a pipette or crack a code: at the level of animal reflex.

There’s no clock, but I can guess at time from the ache in my stomach, the way the muscles behind my knees feel tight and unfinished. Hunger, but not enough to distract. I tell myself it’s time to leave the room, to see if the rest of the bunker will yield anything new, but I hesitate at the threshold. There’s something in the air. The taste of ozone is stronger here—maybe a fresh burst from the air scrubbers, maybe a chemical spill I haven’t found yet. Either way, it reads as a warning.

I step out, boot soles skidding a little on the painted concrete. The hall beyond is no wider than my outstretched arms. The walls are stenciled every meter with the same radiation warning: three black triangles, so overused that in some spots the paint is more chip than pigment. Some symbols are faded, others so new the edges of the stencil are still clean. It gives the whole space a palimpsest feeling, as if it’s been repurposed so often that nobody can remember its original intent.

The corridor splits. To the left, a reinforced blast door with a viewing slit, the glass clouded over with something like fungal growth. To the right, a softer light, the glow of something living. I follow the light, drawn as much by curiosity as by the subsonic increase in Geiger ticks.

The room at the end of the hallway is both familiar and not. Another lab, but this one is more chaotic. Metal chairs overturned, a rack of pipettes scattered across the floor like spilled pencils. On the far side, a bank of refrigerators hums at low volume, the doors taped shut with strips of what looks like surgical tape and the words “DO NOT OPEN - SAMPLE INTEGRITY CRITICAL” scrawled on top in a hand I can almost recognize as my own.

I take an inventory. There’s a row of petri dishes, some still viable, agar glowing faintly blue under the UV hood. The cultures here are different. Not your standard E. coli, but something more aggressive. The growth pattern is radial, but with outbursts—like fireworks frozen mid-explosion.

I can’t stop myself: I lift the hood, slide out a dish, and prod it with the end of a sterilized loop. The colony recoils. For a split second I see motility—active, not just growing but moving. I drop the loop in the flame of a nearby Bunsen and watch it curl black. The word that comes to mind is “engineered.” The realization snaps me back: I’ve done this before. I have created these cultures, somewhere in the fog of my lost history.

There’s a whiteboard bolted to the wall, smeared with equations, chemical names, and half-erased diagrams. The lower third is a mess of arrows and question marks, all converging on a single phrase, underlined so hard the dry-erase marker bled through: “RadShield Matrix - Adaptive Response?” I run my hand over the words, smearing the blue into a bruise. It means nothing, except that it means everything. I can feel the question in my chest, as if my ribcage has become a cage for uncertainty.

I root through the drawers. The first is empty except for a coil of duct tape and a single hypodermic needle, still in the package. The second is stuffed with sticky notes, most blank, but one with a sequence of numbers. I turn it over and see, in a tiny, left-leaning script: “If found, try 1628.” It could be a code, or it could be a joke I once played on myself. I tuck it into my pocket anyway.

On the counter, next to the sink, is a line of sample tubes. Some are half-filled with sludge, others with clear liquid that refracts the light into rainbow smears. The labels are all dates, none more recent than three weeks ago. In the sink, a congealed clot of something brown-black, with a crust like old jam. I poke it with the end of a spatula and it gives way with a wet pop. The stench is immediate: rot and ammonia, the smell of a living thing outliving its usefulness.

There’s a freezer in the corner, a digital readout showing -40°C. The handle is crusted with frost, but it opens when I pull. Inside, rows of cryotubes, each labeled with a cryptic sequence—maybe subject numbers, maybe just someone’s attempt at future-proofing their own confusion. One tube is missing from its slot, a space like a lost tooth in a perfect row. This detail makes my heart double its pace, though I don’t know why. Did I take it? Did someone else?

On the other side of the room, a smaller door, barely more than a closet, stands ajar. The Geiger counter ticks louder here, the tempo doubled and the tone sharper. I push the door open with my foot. Inside is a narrow decontamination chamber, lined with yellowing plastic and lit by a single, flickering blue light. The smell is sharper in here—acetone, maybe, and something organic. In the corner, a full-body suit is draped over a chair, the visor of the helmet spattered with something dry and red. Blood, I assume, but the old kind—oxidized, iron, not fresh. The suit is my size.

Hanging next to the suit is a badge, laminated and heavy, with a name and photo. The face is mine—hair shorter than I have now, eyes ringed with dark, but mine.The name on the badge is “Dr. Diana,” with the last name scratched off or worn away.I stare at the photo for a long time, waiting for some flicker of recognition, but there’s nothing. Just a static shock of shame and pride that doesn’t seem to belong to the same person. I try out the name on my tongue. “Diana.” It doesn’t fit, but it doesn’t not fit. I clip the badge to the collar of my jumpsuit anyway, more for lack of a better option than any actual conviction.

On the back of the badge, in tiny black letters, is an access code: “Zone: Blue. Level: Clearance 3.” I don’t know what any of it means, but I memorize it, just in case. I step out of the decontamination chamber and close the door.

The fridge is still humming. I peel off one of the tape strips and open the door. The cold stings my face, but there’s nothing inside except a rack of ampoules, some crystalline, some opaque. Each ampoule is labeled in the same tidy script as the sticky note: “Matrix Beta,” “Matrix Delta,” “Serum Prototype.” In the back, behind the rack, is a single can of energy drink, the kind with a radioactive green logo and the slogan “LIVE FOREVER” printed on the side. I pop the tab and take a sip. It’s flat, but the sugar makes my tongue tingle. I drain half the can and leave the rest on the counter. Maybe I’m not the only one who’ll need it.

On the lab table, a microscope waits, slide already loaded. I sit, adjust the focus, and peer through the lens. The sample is a thin smear, but at high mag I see the cells writhing—really writhing, like they’re fighting each other for real estate. There’s a membrane, a sheath, something artificial about the structure. The word “Matrix” starts to make sense; it’s a scaffolding for the cells, something that gives them shape and function. I watch for a while, trying to decide if I should be impressed or afraid. In the end, it’s both.

I shuffle the paperwork next to the microscope. Most of it is raw data—exposure logs, dosages, temperature profiles. But there are also notes, and the notes are in my own hand, the same cramped script as the rest. I read: “Test subject responded to Matrix Beta within parameters. Note: increased aggression in later stages, but higher resistance to decay. Side effects: insomnia, mania, increased appetite for protein. Revisit enzyme cascade.”

I flip to the next page. “Delta version shows promise, but thermal stability is a problem. Consider adding a polymer backbone—check with Clarke on feasibility.” The name jumps out at me. Clarke. The same as on the phone in the other lab. Was I working with them? For them? Against them? I can’t remember, but the urge to find this person is now as strong as the urge to open the safe in the other room. A vector, something to follow.

I gather up the notes, fold them into a neat stack, and tuck them under my arm. I scan the room one last time, searching for anything that might have meaning or memory attached. There’s a vent in the ceiling, buzzing with the sound of forced air. The bench is scarred with old burn marks and, in one spot, a deep gouge where someone must have stabbed a screwdriver or scalpel in a moment of anger or desperation. I touch the spot, tracing the rough edge, and feel the smallest jolt of connection. I did this, maybe. I lost my temper, or maybe just my patience.

The anger comes back. Not the sharp, personal kind, but a vast, architectural anger, as if the world outside has failed so hard that it’s left the rest of us to clean up the pieces in bunker basements. I sit, hands flat on the table, and let the feeling wash through me. I could be anywhere—underground, underwater, on the surface of a planet nobody’s named yet. The bunker is a box, but it’s also the only thing keeping me alive.

Somewhere, the Geiger counter ticks up again. I rise, gather the can of energy drink, and retrace my steps down the corridor. The walls close in, the black triangles multiplying as I pass. When I reach the door to the first lab, I pause, remembering the safe and the numbers: 0413, 1628. Two codes, two possible futures. I wonder if there’s a third, if there’s always a third.

I lean against the wall, knees suddenly weak, and close my eyes. In the darkness behind my eyelids, I see flashes: hands moving quickly over keyboards, faces behind glass partitions, a roar of static in my ears and the taste of metal in my mouth. I want to scream, but instead I laugh. The sound is thin and not at all convincing.

I open my eyes. I am Diana. The name is real, even if the memories aren’t. I have a badge, a purpose, and a set of numbers that might one day open a door. I am a scientist, or was. I am alone, or almost alone.

I take a breath, and the air tastes the same as before: recycled, over-filtered, but just barely enough. I walk back to the safe, clutching the notes to my chest, and try again. Because that’s what I do: I try, I fail, I try again. It’s not hope, exactly, but it’s the closest thing I have.

Every routine, when repeated, becomes a ritual. My ritual now is the trek from main lab to the safe, a round-trip pilgrimage through the holy stations of the bunker. I check the Geiger, I test the passcode, I scan the scrawled notes for some angle I’ve missed. The hours blur, or maybe it’s days—there’s no way to tell, not really, not down here. I try the badge code; I try numbers from every sticky note, every margin annotation. Nothing.

What finally breaks the loop is a simple act of accident. I’m on my knees, gathering a spilled deck of punch cards from under the table—whoever designed this place had a fetish for obsolete technology—when I spot a fine crack in the wall panel near the floor. It’s not like the intentional seams everywhere else; it’s a hairline, the kind that only forms under stress or sabotage. I run a fingertip along it and feel a breeze, so slight that only the hairs on my wrist notice. I push, and the panel gives.

Behind it is a hollow, barely big enough for my hand. I reach in. The texture is wrong: not metal, not plastic, but soft, like the cover of an old book. I pull out a bundle—two notebooks tied together with a fraying elastic band, and underneath, a black object about the size of a cigarette pack. A tape recorder. The retro kind, with buttons that clunk instead of click. It’s heavier than I expected, and when I shake it, there’s a muffled thunk like a loose gear inside.

I drop to the cot, legs gone soft. My fingers tremble as I fumble the power switch. The LED blinks red, then steadies. I have a moment of irrational fear—what if it’s just more of my own voice, talking in circles?—but there’s only one way to know.

I press play. The tape whirrs, and after a delay, a woman’s voice fills the bunker. Measured. Low. Cultivated to convey calm, even as it knifes through the silence.

“Diana. If you’re hearing this, protocol was activated. Your memory loss is temporary—a necessary precaution. Listen closely. The situation outside is compromised. Radiation is lethal, but your work is our only hope. The RadShield formula—your version—was closest to stable. The data’s in the safe. Combination is the date we first met. Trust your instincts. They’ll come for the research eventually. They’ll come for you. You must continue. I’m sorry. I had no other option.”