The two raiders came back through the eastern tunnel smelling like wet concrete and copper.
Kael moved first, ducking under the low arch with a rifle slung across his back and a machete riding his hip. Rourke followed a half-step behind, broader through the shoulders, a pump-action shotgun held loosely in one hand like he'd forgotten it was there. Both of them stopped when they registered the state of the main chamber—the smoothed-out wall sections, the pixelating debris, the twenty-odd people pressed toward the center of the space like the room itself was trying to swallow them from the edges.
Kael's gaze found Marcus. "What the hell happened to the south wall?"
"It's happening everywhere." Marcus didn't soften it. "We're being overwritten. We have maybe forty minutes before this whole structure is System geometry."
Aaron watched Kael process that. The man's jaw didn't move, but his weight shifted forward onto the balls of his feet—a fighter's instinct, looking for something to hit. There was nothing to hit. The realization settled into his posture like a slow leak.
Threat assessment, updated, Aaron noted internally. Kael: experienced, reactive, ego-invested in competence. Potentially useful. Potentially volatile if he decides I'm the problem.
Rourke just looked at the ceiling. A section near the far corner had already gone featureless—a flat grey plane, smooth as poured concrete, sitting at odds with the rough-hewn tunnel rock around it. His expression didn't shift, exactly, but something around his eyes went very still in the way things go still when a person is doing hard arithmetic.
"There's a plan," Marcus said. He jerked his chin toward Aaron. "His."
Both men looked at Aaron.
Aaron didn't particularly enjoy being looked at by people who were armed and recently disappointed.
"There's a glitched teleporter in the forest sector," he said, keeping his voice flat and transactional. "It works. Mostly. To fix it properly and lock in a safe destination, I need coordinates pulled from the old city mainframe. Downtown."
"Downtown is a kill zone," Kael said.
"Yes."
"The Zone-Three spawns alone—"
"I know what's downtown." Aaron kept his tone level. "I also know what's happening to this ceiling." He didn't look up. He didn't need to. The soft grinding sound from above—stone geometry being reprocessed into something smooth and featureless—was doing the rhetorical work for him.
A beat of silence. The grinding continued.
Rourke looked at Kael. Some kind of communication passed between them that didn't involve faces—a slight shift in how Rourke's hand repositioned on the shotgun stock, a fractional tilt of Kael's head.
"You need us to babysit a QA tech and a—" Kael glanced at Lara, recalibrating mid-sentence. "—and her, to the edge of downtown."
"To secure transport and a portable generator," Marcus said. "Then you bring them back intact."
"And if we do that, we get out through this teleporter."
"If Aaron pulls this off, everyone gets out."
There it is, Aaron thought. That's the hinge point. He watched Kael's jaw work through the math—the cost of trusting a stranger against the cost of staying in a room that was currently eating itself. The man's gaze dropped to the floor for exactly one second. One second of genuine uncertainty, visible only in the way his weight redistributed, one hip dropping slightly.
Then it came back up, and the uncertainty was gone. Filed somewhere. Dealt with later.
"Fine," Kael said.
It wasn't enthusiastic. It wasn't warm. It was the verbal equivalent of signing a contract you didn't like because the alternative was worse.
Aaron respected that, actually.
Rourke was already moving, pulling a second magazine from a chest rig and checking it with the practiced efficiency of someone who'd been doing this long enough that it stopped feeling like preparation and started feeling like breathing. He slotted it back. Checked the pump on the shotgun. Looked at Aaron.
"You armed?"
"Not in any way that would impress you."
Something flickered at the corner of Rourke's mouth. Not quite a smile. The ghost of one, maybe.
Lara had her pack adjusted and cinched before Aaron finished the sentence. He'd noticed she moved like that—no wasted motion, no visible anxiety in her hands, just a series of small efficient actions executed in sequence. She was scared. He could see it in the way she kept her breathing deliberately controlled, the slight over-precision of every gesture. But she wasn't letting the fear run the show.
Useful, he noted. Possibly more useful than either of the armed men, depending on what the mainframe situation looks like.
The ceiling groaned. Thirty feet away, a stalactite dissolved upward, its mass absorbed into a spreading grey plane that hadn't been there two minutes ago.
Marcus pressed two fingers to Aaron's shoulder—brief, firm, the gesture of a man who didn't do gestures lightly. "Come back."
Aaron looked at the exit tunnel. The rough-hewn mouth of it, still organic, still real, still the actual world.
The group turned toward it.
The hum didn't build. It arrived.
One moment the ceiling above the main living area was rough-hewn rock and patched concrete, decades of water stains mapping its surface like a relief atlas. The next, a section roughly four meters across simply stopped being those things. The texture bled out of it—not crumbling, not collapsing, but smoothing, the way a photo loses resolution when you stretch it past its limits. The rock became grey. The grey became featureless. The featureless became a descending plane, perfectly flat, perfectly perpendicular, dropping with the patient, mechanical certainty of a hydraulic press.
Aaron watched it for exactly one second before his stomach dropped to somewhere around his knees.
That's not a structural failure. That's a garbage collection sweep.
He'd seen the same logic in broken game engines—memory addresses that the system had flagged as orphaned, reclaimed with zero regard for what was still occupying them. The System wasn't attacking. It was tidying. They were the mess.
The first storage crate hit the plane and simply ceased. No splinter. No crunch of wood. The objects inside—tins, blankets, someone's carefully folded spare jacket—compressed into a brief smear of pixelated light and vanished. The plane didn't slow. Didn't notice.
"Move." Marcus's voice was flat, stripped of everything except command. He was already at the eastern tunnel mouth, one arm out, directing the stream of people flowing past him. His posture was a wall, shoulders squared, feet planted, giving the chaos something solid to flow around.
Aaron was already moving, but his attention kept snagging on the descent. He clocked the rate. Roughly twelve centimeters every ten seconds. The main chamber was three and a half meters floor to ceiling.
We have approximately four minutes before it hits ground level. Probably less before it starts compressing anything taller than a meter.
The second crate went. A rack of dried goods—someone's winter supply, someone's careful rationing—folded into the grey plane without so much as a sound.
Lara fell into step beside him, close enough that he felt the heat radiating off her arm. She wasn't looking at him. She was watching the ceiling with an expression that had gone very still and very controlled, the kind of stillness that required active maintenance. Her pack was already on her back, straps cinched, weight distributed. She'd been ready before the plane started moving.
She packed the moment Marcus started talking. Not during. Before.
He filed that away.
Kael was ahead of them, moving with an economy of motion that Aaron grudgingly respected—no wasted steps, no looking back, a man who'd clearly made peace with the policy of not watching things burn. Rourke was behind, and Aaron could hear the irregular cadence of his footsteps, heavier on the left, compensating for something. A recent injury, or an old one that hadn't healed clean.
The plane reached the height of a standing person.
Someone in the crowd made a sound—not a scream, something worse, a high thin noise of pure incomprehension—as a sleeping pallet that had been against the far wall disappeared mid-fold, the blanket on it still shaped like a sleeping body, a ghost impression, and then nothing.
Aaron's hand moved to his chest pocket, fingers finding the edge of the Null Phone through the tactical vest. Not pulling it out. Just confirming it was there. The weight of it, the slight warmth from his body heat. Grounding.
Coordinates. Mainframe. Generator. Teleporter. In that order. Don't think past the next step.
The tunnel entrance was close now, maybe six meters. The press of people had thinned—most had already funneled through, the Warren's population reduced to stragglers and the deliberately last-out. Marcus was still at the mouth, counting heads with the economical precision of a man who'd done it under worse conditions.
The descending plane crossed below chest height.
A second rack—this one metal, bolted to the wall, holding tools and spare parts Aaron had catalogued on his first day as potentially useful—hit the grey surface and sheared. The upper half gone. The lower half standing, confused, for a full two seconds before the plane reached it.
Aaron was at the tunnel mouth.
He turned back, one last look at the main chamber. The grey plane was maybe a meter off the ground now, and the space beneath it was just gone—not dark, not shadowed, simply absent, the floor visible below a ceiling that should have been three meters higher. The geometry of the room had been rewritten.
The last crate—a heavy wooden chest that had served as someone's table, coffee rings worn into its lid—hit the plane with a sound like a sigh and compressed into nothing.
"Run!" Aaron shouted, and his voice came out louder than he intended, raw at the edges, and he was already moving into the dark of the tunnel before the word finished echoing off walls that were, second by second, forgetting they had ever existed.