Hana said no before Joon finished saying Daesung.
"No."
Joon kept the phone to his ear anyway.
"I know," he said. "Yes. Still listening. Regretfully."
Aiden leaned against the loading-bay wall and watched the last of the light flatten across wet concrete. The sealed extraction case from the day's clear still sat by the van. Nobody had gone home. The day had simply changed shape and decided to stay hostile.
Nyx lay under the folding table with his wings tucked too tight and his eyes half closed.
"Take it," he said.
Hana turned on him first.
"You don't get a vote."
"Then stop consulting me with your face."
Joon lowered the phone and looked at Aiden.
"Private-side posting. Twelve-hour response. D-band provisional review. Metro maintenance spur under the old wholesale district."
Min, halfway through opening another canned coffee, stopped.
"That is a trap written by accountants."
"And brokers," Hana said.
Do-yun said, "Or bait."
"Also yes," Hana said.
Joon checked the packet on his tablet.
"First team entered with a private handler and came back fast enough to leave equipment behind. No official injury filing. No clean withdrawal notice either. Which means everybody involved is either embarrassed or lying."
"Both," Hana said.
Iris looked up from the desk in the office corner where she had spent the last hour turning bills into categories and categories into accusations.
"Why post it private first?"
Hana answered without hesitation.
"Because if ARES clears it, Daesung gets to say the market solved the problem before the district had to move. If ARES fails, they let it become official and call the result educational."
Joon pointed at her with two fingers.
"That."
Min looked at Aiden.
"You have the expression you get right before I hate your decision."
Aiden did not answer immediately.
Private-side first. D-band review. Metro spur. One team already shaken off the route. Daesung holding the Association stamp just far enough away to deny ownership if things turned ugly.
Too clean.
Too interested.
Exactly the kind of route you took once if you wanted to see how someone else preferred to lie.
"We go," he said.
Hana closed her eyes for one second.
"Of course we do."
She was already moving when she opened them again. Tablet up. Calls out. Voice flat enough to cut wire.
"Fine. Then we don't go alone on paper. Joon, I want two independent timestamps on entry and exit. I want bodycam duplication before upload. Min, full field authority if the route turns. Do-yun, heavy shield, not the compact one."
"Already was," Do-yun said.
"Iris, archive every call and message attached to this posting. If Daesung tries to become vague tomorrow, I want their vagueness itemized."
"Happily."
Nyx opened one eye.
"Humans become much more interesting when they want plausible deniability."
"You contribute to the need for it," Hana said.
"You're welcome."
They were on the road thirteen minutes later.
The old wholesale district looked tired in the way profitable places often did after dark. Delivery alleys. Half-lit signs. Shuttered electronics shops with steel blinds pulled down over display glass that still glowed faintly underneath. Rainwater held in the seams of the street reflected red and blue signage in broken strips.
The metro entrance they wanted had been closed for years. The route marker remained only as a faded rectangle above a stairwell fenced off with district mesh and temporary barrier tape.
There were already people waiting.
Not Association.
Two Daesung subcontractors in field jackets too discreet to be honest. One portable scanner tech with the posture of a man who would rather have been wrong on paper than present in person. One broker holding a tablet and standing just far enough back to imply he priced danger better than he faced it.
The broker stepped forward first.
"ARES. Fast response."
"Bad phrasing," Min said.
The broker chose not to hear him.
"The route is straightforward. Lower maintenance line. Likely nest growth around the carriage housing zone. Initial scanner trend suggested high E with localized D-band volatility."
"And the first team?" Hana asked.
"Chose to withdraw."
"Why."
"Unfavorable terrain."
"That sounds like a sentence built to survive an inquiry," Hana said.
The scanner tech lifted the device a little, as if numbers might shield him from conversation.
"Readings are unstable," he said. "The signal spikes when the line draws current through old infrastructure. The map may be imperfect."
Nyx, perched on Aiden's shoulder, looked at him without interest.
"Humans do love apologizing in advance."
The tech stared.
"It talks?"
"Don't make that your first question," Joon said through comm.
Hana took the tablet from the broker's hand before he finished deciding whether to object. Aiden watched her skim the layout.
Entry corridor.
Ticket concourse.
Split maintenance line.
One central platform chamber.
Expected nest cluster near the dead carriage zone.
No side shafts marked.
No upper maintenance access.
Too little empty space for a metro spur this old.
"This map is wrong," Aiden said.
The broker's expression tightened.
"It's the latest survey."
"No," Aiden said. "It's the latest version you're willing to show people."
For a moment the only sound was rainwater dripping down the old stair rail behind them.
Then the broker smiled in a way that made retreat sound expensive.
"If you don't want the route, say so plainly."
"We want it," Aiden said.
That took something mean and satisfied out of the man's face.
Good.
He had expected negotiation.
He got movement.
The stairwell went down in two long flights under dead fluorescent housings and mold-dark concrete. ARES entered without another word. Joon stayed topside on comm and feed control. Hana remained above the barrier to lock timestamps into existence before anyone could become uncertain later.
At the bottom, the old station gates had rusted open years ago.
The dungeon had done the rest.
The concourse beyond looked like a station remembered badly by something carnivorous. Ticket barriers had fused into black mineral ridges. Dead vending machines caved inward under pale cord growth that ran across the ceiling like exposed tendon. Ad panels still glowed in fragments behind layers of crystal film, broken faces and unreadable slogans shining through dungeon residue.
The air was warm.
Too warm for underground concrete.
And it smelled wrong.
Not rot.
Not water.
Hot metal.
Wet fur.
Nyx dropped from Aiden's shoulder without sound.
"This one eats noise," he said.
Aiden felt it a second later.
The station swallowed sound too quickly. Boots hit tile and came back thinner. Breath seemed private. The little mechanical noises of Min's kit were there, but dulled, as if the air had decided to keep only what mattered for hunting.
Do-yun took point down the concourse.
Min shifted center-left.
Aiden moved ahead.
Nyx vanished up the broken line of an overhead route display.
The first body was not human.
It lay beside an overturned service cart halfway down the corridor, opened from throat to spine with a precision too clean for panic and too rough for tools. White hide. Too many joints. Sightless face like sealed wax.
Min crouched without touching it.
"Not one of ours."
"No," Aiden said.
The wound said enough.
Fast prey species.
Pack anatomy.
Killed from the side.
Something stronger had been feeding inside the station before they arrived.
Do-yun looked down the line of the concourse.
"We're not first to disturb it."
"No," Aiden said again.
The second sign came thirty meters later.
A dropped baton.
Then a torn shoulder guard.
Then the first clean human blood on tile, dark enough to have started drying, bright enough not to be old.
Min's voice flattened.
"That's first-team equipment."
Aiden crouched by the baton. The grip was slick, not from dungeon residue.
Human sweat.
Blood.
Fear-handling.
He stood.
"They ran."
"Not cleanly," Do-yun said.
No one argued.
The first living thing reached them at the escalator break.
It came from under the dead metal teeth of the down line, pale and long through the spine, front limbs jointed wrong, head blind and narrow until the mouth opened vertically. Then a second came down the wall. A third skittered under the broken handrail with the ugly certainty of something that had killed here already.
Do-yun hit the front one first. The shield took the impact and rang dull in the eaten air. Min burned the second with a short pulse of support light. It should have checked target then and gone for the brighter threat.
Instead it turned toward Aiden.
Not to lunge.
To stop.
Its claws bit tile. Its head lowered. The mouth stayed open. The thing shivered visibly, like its body had reached one conclusion and its instincts another.
Aiden moved before anyone else did. Knife under the jaw. Turn. Rip. The corpse fell across the escalator teeth.
The third creature changed direction halfway through its rush, not toward Min, not toward Do-yun, but away from the space directly in front of Aiden. Nyx took it across the neck and drove it into the wall hard enough to burst crystal dust loose from the tiles.
Silence returned too quickly afterward.
Min looked at the dead thing on the escalator.
Then at Aiden.
"That wasn't hesitation."
Do-yun said nothing.
But he did not look at the body.
He looked at Aiden.
Joon's voice came through the comm.
"Talk to me."
Min kept watching Aiden.
"The monster had him and decided it preferred confusion."
"That's not a sentence I can use in paperwork," Joon said.
"You should upgrade your paperwork."
That was Nyx, from somewhere overhead.
They took the lower service corridor on the right because the concourse ahead had started to feel too still to be empty. The tunnel narrowed almost immediately. Broken maintenance lights flickered inside crystal husks. Pale cord growth hung from the ceiling in strands too thick for webbing and too flexible for mineral.
The first-team trail got worse there.
Boot marks sliding in blood.
One snapped flashlight.
One torn pouch.
Then, on the tunnel wall, a human handprint dragged low and sideways at shoulder height, as if whoever left it had been moving while something else decided where to keep them.
Min stopped.
"Still recent."
"How recent."
"Hours. Not days."
That changed the shape of the route at once.
Not failed team.
Not aftermath.
Someone could still be in the station.
Aiden felt the whole line tighten around that fact.
"Move," he said.
They moved faster after that.
The service corridor opened onto the platform chamber without warning.
Old track.
Dead route lights.
A maintenance train sitting half in darkness with its doors open and its windows blacked over by pale growth.
The station should have echoed there.
It didn't.
The sound-eating quality of the dungeon got worse near the platform. The space seemed to pull smaller noises into itself and keep them. Even Do-yun's steps came back faint. Min's breathing stayed close and small, as if the station had leaned in around it.
Then Aiden saw the marks on the near platform edge.
Not scratches.
Harness drag.
Boot heel.
Blood.
Human.
The first team had reached the train.
Something had kept them there.
Nyx landed on the platform roof of the maintenance carriage and went still.
That alone stopped everyone else.
"What," Min said quietly.
Nyx did not look down.
"Alive," he said.
Not reassuring.
Worse, because it could have meant too many things.
Aiden stepped off the service path and onto the platform.
The air changed again near the carriage. Warmer. Wet. The pale growth across the train windows twitched once in a way crystal should not have.
Do-yun shifted forward half a step.
"If something comes through that door, it comes through me first."
"Good," Min said. "I hate surprises built at chest height."
The near carriage door stood half open.
The yellow warning strip below it had gone dark under old fluid stains.
Then something fresh dripped from the doorway onto the line.
Not water.
Not monster blood.
Human.
Fresh enough to shine.
Aiden looked inside.
The first team's missing scout was hanging from the ceiling of the carriage in a web of pale cord, alive just long enough to matter.
And behind him, deeper in the dark, something much larger shifted and opened too many listening mouths at once.