Three days. I know the drill well enough now that I barely register the transition anymore, which scares me more than the transition itself ever did.
Mom's stopped asking where I go. She just makes rice for two and eats across from me like the silence between us is its own kind of conversation, one neither of us has figured out how to end. I let her have that. It costs me nothing and gives her something to hold onto, and I've stopped believing there's a version of tonight where honesty would cost less than the lie already does.
I text Vincent on the second night, mostly because I don't know what else to do with the quiet.
*You good?*
*Define good.* A pause, three dots blinking, gone, back again. *I'm marking undergraduate essays about set theory. It's almost soothing. Nobody in these essays is trying to kill anyone.*
*Living the dream.*
*Living someone's dream, anyway.* Another pause, longer this time. *Can I ask you something I probably shouldn't ask over text?*
*Sure.*
*Does it get less lonely? Being the one who remembers, out here, while everyone around you doesn't.*
I sit with that question longer than I mean to before I answer it.
*No,* I finally send. *You just get better at carrying it somewhere nobody has to watch.*
*That's what Jung-su would say.*
*That's because it's true, not because I'm copying him.*
He doesn't answer again that night. I don't need him to. Some questions are just for asking, not for closing.
Areum texts too, briefer than usual, just a photo of a cat sleeping in a laundry basket with the caption *this is the most normal thing I've seen in three days.* I send back a photo of my mother's rice, mostly untouched, and she sends a single laughing emoji that somehow carries more weight than a full sentence would have.
Mrs. Bae doesn't text at all. She just shows up on the second evening again, a different container this time, and doesn't explain why she keeps doing this except to say, once, "Somebody has to. May as well be me." I don't argue with that logic. Nobody ever really does.
* * *
The third night takes me faster than usual, like it's stopped bothering to wait for a convenient hour, and when the light lets go of me I'm standing somewhere that doesn't look like it should exist outside of a photograph.
Curved white ribbing arcs overhead in a shape that has no business holding itself up, walls that flow into ceiling into floor without a single seam to mark where one becomes the next. No corners anywhere. No straight lines at all, actually, now that I'm looking for them — everything bends, gentle and enormous, like the whole building got poured instead of built.
I know this place. Not from a real memory this time — from photos, from a field trip I never actually got to go on, from the kind of building that ends up on postcards specifically because it looks like nothing else in the city.
"Dongdaemun," Jung-su says beside me, already turning slowly on the spot, doing the same instinctive read he does everywhere now. "The design place. I brought my niece here once, before any of this."
"It's already wrong," Areum says, arriving on my other side. "Real DDP doesn't feel like this. I've been here. It's weird-looking on purpose, sure, but it doesn't feel like the building's still deciding what shape it wants to be."
I check the floor out of habit. It is warm beneath my shoes, the same wrongness as always, except here it is difficult to tell where the floor ends and the wall begins.
My bracelet buzzes before anyone commits to the staircase.
STAGE 6 — THE FOLD
CLEAR CONDITION: LOCATE AND TERMINATE THE FOLD.
FAILURE CONDITION: SURVIVORS LOST BEYOND TRUE SPACE CANNOT BE RECOVERED.
The objective gives us a target. The building refuses to give us an honest direction.
Sixth room. I don't feel proud of finding it this fast anymore. Mostly I just feel tired.
The light itself doesn't seem to come from anywhere. It just exists, ambient, evenly distributed across every curve, no shadows pooling anywhere they should. I look for a light fixture, a window, anything with an actual source, and find nothing — just brightness, uniform, patient, the same way everything patient in this place has always been.
A staircase spirals up from where we're standing, wide and pale and gentle in its curve, and when I follow it with my eyes it simply keeps going, past where a second floor should logically cap it, curling up into a ceiling that shouldn't have room for it at all.
"That's not physically possible," Areum says, following my gaze. "That staircase is longer than this building is tall. I've seen this building from outside. I know how tall it actually is."
"Real DDP doesn't have a staircase like that at all, as far as I remember," Jung-su says. "This is new. Not borrowed from the real one. Built for us."
"Or built to look like it wasn't," Vincent says, quiet. "The real building already plays games with what looks structurally possible. Whatever's underneath the disguise this time just had to push a little further than usual to hide in plain sight."
* * *
Vincent finds us near what should be an escalator and isn't quite one, one hand braced against the curved railing like he doesn't trust his own balance in a building this confidently indecisive about which way is down.
"I've read papers about buildings like this," he says, mostly to himself. "Never stood inside one that felt like it was still doing math I couldn't see."
"You read papers about buildings."
"I read papers about a lot of things. Occupational hazard." He straightens, glasses catching the strange ambient light that comes from everywhere and nowhere at once, no visible source anywhere along these endless curves. "Structural engineering was a phase. Age eleven, if you're wondering. I go through phases fast."
"Age eleven," I repeat.
"I was a strange child." He says it lightly, but something underneath doesn't match the lightness, the same way it hadn't back on the street with the mascot. "Strange children read a lot of things they're too young for and call it a hobby."
Mrs. Bae is already sweeping the space with her eyes, counting exits that don't look like exits so much as places the wall simply stops being solid. Yuna stands close to Su-min, who hasn't said much since we landed, still holding that same shopping bag like it's the last real thing he owns.
Su-min hasn't moved from the spot where he landed, still gripping that shopping bag, eyes fixed on the impossible staircase like he's waiting for it to admit it's lying.
"First room?" Yuna asks him, gentle.
"Second." Su-min's voice comes out smaller than I'd expect from someone who survived Myeongdong barely three days ago. "First one was quiet. Nothing happened. I thought maybe I'd imagined the whole thing until the wall opened again."
"Quiet ones exist," Yuna says. "Not often. But they exist. You got lucky once. That's not nothing."
"Doesn't feel like luck. Feels like waiting for the other version to catch up." Su-min finally looks away from the staircase, meets Yuna's eyes instead. "How do you people do this. Over and over."
"Badly, some nights," Yuna says, honest in a way that seems to land better than reassurance would have. "Every one of us. You'll find your own bad-at-it version too, eventually. It counts as progress."
Su-min almost laughs, disbelieving, the same way he had on the street. "That's a strange thing to find comforting."
"Most true things are, out here."
"You okay?" I ask Vincent, mostly because the question feels safer to ask than to answer myself right now.
"Define okay." He almost smiles at his own joke before it fades. "Sorry. That's twice I've used that line tonight."
"It's a good line. Steal it as often as you need to."
He's quiet a moment, looking up at the ribbing overhead, curves folding into curves with no logic I can follow. "This building reminds me of the flat I grew up in," he says, finally. "Not because it looks anything like it. Because I keep looking for the seams and there aren't any, and not knowing where one thing ends and another begins used to be the most normal feeling in the world to me."
"What do you mean."
"We lived in a subdivided flat. Hong Kong. One room split into four with plywood and prayer, is the honest way to describe it." He says it plainly, no self-pity in the delivery at all, just fact laid out the way he laid out percentages back on the street. "My father used to joke that our walls weren't really walls, just agreements between neighbors about whose cough belonged to whom."
"That's a hell of a joke."
"He had a hell of a sense of humor, considering." Something in his voice thins out, careful now, like he's picking each word up before setting it down gently. "There was a fire. Wiring wasn't built for the number of people actually living there — it never is, in buildings like that, that's not an accident, it's just what happens when profit gets to decide how many people fit in a space built for a third of them."
"How old were you."
"Six. Old enough to remember the smell. Young enough that most of what I actually remember is secondhand now — my mother's version of it, told and retold until her version is the only one I've got left." He says it without any drama attached, the specific flatness of a fact worn smooth from handling. "I used to resent that. That my own memory of the worst night of my life isn't really mine anymore. It's hers, borrowed."
"That's not the same as not having it."
"No." He looks at me properly for the first time since he started talking. "That's a fair distinction. I don't usually get that particular correction from people. Most just tell me I'm lucky I don't remember more."
"Are you? Lucky, I mean."
"I don't know yet. Ask me again in another twenty years." A ghost of a smile, gone as fast as it arrived.
I don't say anything. I've learned enough by now to know when a silence is doing more work than a question would.
"He didn't get out," Vincent says. "I did. My mother did. We didn't have anywhere to go after, for a while. Then I tested into things. Scholarships. A program that got us to the States when I was six." He shrugs, small, like the gesture might make the weight of it lighter, and it clearly doesn't. "Everything after that, every top mark, every acceleration, every year I skipped — it was never really ambition. It was making sure my mother never had to live somewhere with agreements instead of walls again."
"You were six."
"I was six and very good at math and extremely aware that being very good at math was the only lever I had." He looks at the curved ceiling again, like he's daring it to disagree with him. "There's a specific kind of childhood where you understand, very young, that your own usefulness is the thing keeping your family's situation from getting worse. I don't recommend it. I also don't know how to undo it, twenty years later."
"Did anyone ever tell you that wasn't your job to carry? Being six?"
"Plenty of people told me that. None of them were the ones who'd have had to figure out rent if I'd stopped." He says it without bitterness, just arithmetic. "My mother never asked me to be exceptional. I decided that on my own, the week after the fire, apparently, according to her. I don't remember deciding it. I just remember it already being true by the time I was old enough to notice I'd decided anything."
"That sounds lonely."
"It was. It still is, some days, if I'm honest, which I don't do often." He glances at me, something almost surprised in it, like he didn't expect to say that last part out loud either. "I don't tell people that. I don't know why I'm telling you."
"Maybe because I'm not going to remember it wrong in three days," I say. "Or forget it happened at all."
"That's a strange kind of comfort."
"It's the only kind I've got a surplus of."
He almost laughs, short, real. "Diu lei," he mutters, half to himself, half to the building. "I hate that that actually helped."
Areum's drifted close enough to have caught the last of it, arms crossed, quiet in the specific way she gets when something's actually landed on her instead of just passing through. "For what it's worth," she says, "nobody in this group is going to make you feel small for having needed to be exceptional at six. We've all got our own version of that story by now."
"Is that meant to be comforting?"
"It's meant to be true. Comforting's a bonus if it happens." She almost smiles. "Also, for the record — diu lei is a good phrase. I'm stealing it."
"Use it wisely. It travels further than English ever does when you actually mean it."
Mrs. Bae doesn't say anything at all, just rests a hand briefly on Vincent's shoulder on her way past, the same wordless weight she's given every one of us at some point since the first room. He goes still under it, like the gesture cost him something to accept, and doesn't shrug it off either.
* * *
Something shifts in the ribbing overhead while we're standing there, slow, deliberate, a curve that wasn't quite that shape a second ago settling into a new one like the building just exhaled.
"Did anyone else see that," Areum says, low.
"Yes," Jung-su says, already moving toward the group instead of away from it, staff already in hand. "And I don't think it's going to be the last time it does."
Su-min makes a small sound, not quite a word, staring up at a staircase that curls somewhere above us and simply stops, no landing, no railing, just ending in open air like whoever designed it forgot to finish the thought.
"That staircase went somewhere a second ago," he says. "Didn't it. I watched people walk up it."
Nobody answers her, because nobody wants to be the one who says out loud that she's right.
A scream comes from the staircase above us.
A man appears on the landing, running hard. The next step folds upward beneath his foot. His shin bends backward with a wet crack. Before he can fall, the wall closes on him.
It does not crush him all at once. The curve tightens by inches. Ribs punch through his shirt. One eye swells out of its socket. His scream becomes a red cough, then stops when the ceiling shears down through his neck.
His head rolls to the bottom step. The rest of him disappears inside a wall that becomes smooth again.
My bracelet gives me no target and no damage result. Then the dead man's last panic enters me, followed by the numbers.
HUMAN ECHO ABSORBED
VIT: 40 → 44
WILL: 43 → 47
The building did not attack him like a monster. It edited the space he occupied. My ability still counted the death.
Now I understand what happened to the other climbers.
Somewhere off to the left, a corridor that should dead-end against an exterior wall keeps going instead, curving gently out of sight, and a survivor several yards down it turns to look back at us with an expression that says he's noticed the same thing we have, and doesn't have any better an explanation for it than we do.
"Everyone stay close," Jung-su says, quiet but carrying. "If this place is still deciding its own shape, I don't want anyone finding out the hard way what happens to something standing in the wrong spot when it finishes deciding."
Vincent's already doing the math again, murmuring under his breath, half in English, half in something that isn't. "If the geometry's non-Euclidean and adaptive, distance itself stops being a reliable variable. We could be twenty feet from the exit or two hundred. There's no way to know without testing it, and testing it might cost someone."
"Then we don't test it," I say. "Not yet."
"Agreed. Just wanted it said out loud once, so nobody assumes normal rules still apply here."
The condition text remains above us when the tier finally appears.
STAGE 6 — TIER E.
The lowest number I've seen yet. I already know better than to feel relieved about it, the same way I know better than to trust a quiet room or a friendly-looking mascot at this point. Every lesson this place has ever taught me points the same direction: whatever looks safest is usually the thing that costs the most to underestimate.
"Tier doesn't mean what it says," Jung-su says, before anyone can ask. Vincent's already nodding, like he'd guessed as much on his own.
"Low tiers concentrate the real danger," he says. "Structurally, that tracks. If low numbers make people careless, the actual threat model would want to hide inside exactly that complacency."
"You did the math on that already," I say.
"I do math on everything. It's not always useful. This time I think it might be." He glances at the staircase again, then back at me. "For what it's worth — almost comforting, if you squint — I've survived worse odds than a low tier badly labeled. So have you, apparently, several times over."
"That's not exactly comforting."
"I did say almost." A small, tired smile. "I'm working with what I've got."
Somewhere above us, the ribbing shifts again, slower this time, like the whole building is stretching, and I catch Jung-su's eyes and know we're both thinking the same thing without either of us saying it out loud.
"Should we move, or stay put," Areum asks, low, watching the ceiling like it might answer for itself if given the chance.
"Moving assumes we know which direction is actually away from danger," Vincent says. "In a space this unstable, that's not a safe assumption yet."
"So we wait."
"We wait," Jung-su agrees, "and we watch. Same as always. The waiting's never been the part that kills people. It's the part right after, when everyone decides they've waited long enough."
Su-min presses closer to Yuna without seeming to notice he's done it, and Yuna doesn't shift away, just lets the weight settle against his arm like it's the easiest thing in the world to hold.
Whatever's wrong with this place, it isn't finished changing shape yet. I can feel it settling around us the way you feel weather changing before the sky actually admits to it — a pressure, a held breath, the specific stillness of something enormous deciding exactly how it wants to be found.