"Move or choke," Kaelen said.
Lara tried to answer, but the air got there first.
The chamber had changed.
The node in the center no longer looked dormant or half-awake.
It was open now, bare and ugly, a knot of blue and red lines spinning inside a cracked housing of cable and metal.
The whole room leaned around it.
The fiber roots under the floor pulsed in hard beats.
Every pulse pulled a little more air out of the chamber.
Lara dropped to one knee.
Her hands hit the floor.
She dragged in a breath and got almost nothing.
Kaelen coughed and tasted blood.
Not a little.
Enough to make him stop and think about the body he was using.
He hated that part most.
The body had limits.
Crude ones.
Hungry ones.
The old him would have kept moving on contempt and spite alone.
This one wanted to fail in loud, ugly ways.
The node hummed.
Then it sharpened.
He felt it in his teeth.
Lara looked up at him, eyes wide, one hand over her throat.
"I can't—"
"Don't waste breath talking," Kaelen said.
She glared at him even while she was losing the argument with oxygen.
Good.
Anger helped.
Fear made people soft.
Anger kept the hands moving.
Kaelen turned to the node.
The Glassman was dead.
The chamber was quiet except for the node's pull and Lara's rough breathing.
The absence of the guardian should have made the room feel safer.
It didn't.
It felt owned.
That was the problem.
Kaelen stepped closer to the central housing.
Blue and red lines moved under the transparent shell like veins full of live wire.
The interface readout had vanished from normal sight.
It was deeper now.
He could feel the system asking for something that was not a button press, not a key, not a simple command.
It wanted a claim.
A mental grip.
A shape the node could accept as master.
He reached out.
The moment his fingers touched the holographic shell, the world split open in his head.
Not pain first.
Data.
A wall of it.
Construction logs.
Transit schematics.
Utility maps.
Old maintenance reports.
City permits.
Failure records.
Reinforcement charts.
Hundreds of hours of boring human work, stored, cross-referenced, and buried inside the node like bones in a basement.
The information hit him in a single ugly flood.
He saw the station.
Not as a room.
As a structure.
He saw its tunnels, service shafts, drain lines, old rail supports, cable runs, flood vents, emergency exits.
He saw where the city had patched over collapse, where it had cut corners, where someone had signed off on a weak brace and gone home.
He saw the routes above ground too, the streets, the load paths, the pressure points.
The node had not just swallowed the station.
It had taken the map of a district and started rewriting the rules.
Kaelen's jaw tightened.
This was worse than he thought.
And better.
The node was an anchor, but it was also a builder.
It was taking the dead weight of the metro and turning it into a safe zone, one layer at a time.
A class E zone, maybe more if it was fed right.
That meant the territory around it would change.
Streets would shift.
Routes would fail.
Some paths would become safer.
Others would be sealed off.
The city itself was being redrawn in small bites.
A new labyrinth, one block at a time.
He almost smiled.
Almost.
Then the node shoved back.
His hands jerked against the shell.
The data in his head kept coming, but now it came with resistance.
The system wanted him to understand the structure, yes, but it also wanted proof he could hold it.
A claim without a spine was just noise.
Kaelen pressed harder.
His ears rang.
The chamber lights flickered.
He felt Lara trying to stand behind him, then failing.
Her shoes scraped the floor.
She made a sound like a cough she tried to hide.
Kaelen did not look back.
He was too busy not drowning in borrowed infrastructure.
The source layer opened in patches.
He saw routes and locks, old maintenance permissions, hidden doors, abandoned service caches.
He saw a note buried in the node's construction history.
Two words.
Emergency cradle.
Interesting.
Very interesting.
He pushed farther.
The node gave him a warning pulse in static black.
[Assimilation Incomplete]
[Structural Claim Requires Vital Catalyst]
Kaelen froze for half a beat.
That was the catch.
Of course there was a catch.
He had known there would be one.
He had just hoped the node would be polite enough to wait until after the good part.
Vital catalyst.
Not more power.
Not more code.
A living seal.
Something the node could bind to in order to stabilize ownership.
Kaelen's throat tightened.
He pulled one hand free from the shell long enough to wipe blood from his mouth.
He was already running close to empty.
He could feel it in the edges of his vision.
Another hard push and he would slide into a coma or worse.
The body would shut down before the claim finished.
The node would reject him.
Or worse, split the difference and keep him as feed.
He turned his head.
Lara was on her hands and knees now, dragging air in like it hurt to remember how.
Her face was gray under the soot.
Her eyes were half open.
She was still conscious, but not by much.
He looked at her and the room did the math for him.
It was a bad math.
The kind that never feels clean.
Lara tried to focus on him.
"What's wrong now?"
Kaelen said nothing.
She noticed that and swore under her breath.
"That bad?"
"Yes."
She gave a rough laugh, then choked on it.
The node pulsed again.
Kaelen felt the chamber tighten.
The room was under pressure now, air thinning in short ugly waves.
The roots under the floor drew harder.
The housing at the center had started to glow at the seams, blue and red mixing into a dirty white at the edges.
He had a choice.
Use his own body and risk losing consciousness before the claim set.
Or use hers.
He hated that he had to think about it for more than a second.
Lara looked up at him.
She saw the answer on his face, maybe not the whole thing but enough.
Her expression changed.
Not into fear.
Into something meaner.
"You're kidding," she rasped.
Kaelen didn't lie.
"That's your idea?" she said.
"Using me?"
"No."
"Then stop looking at me like that."
"I'm not looking at you like anything."
She barked a laugh that ended in a cough.
"That's worse."
Kaelen closed his eyes for a moment.
He hated this part of the world.
Not the killing.
Killing was simple.
Not the running.
Running was honest.
It was the choices that cost.
The choices that made the floor feel smaller.
Above them, far away, a sound rolled through the city.
Not a crash.
A shudder.
One of the local seismic ripples, caused by the node's activation.
The city answered with a small tremor that moved through pipes, rails, and foundations like a twitch in a sleeping body.
Elsewhere, on a parking deck above the streets, Silas felt the tremor through the soles of his boots.
He had stopped watching the trolls.
Now he watched the block below him.
One entire section of road had sunk by half a meter in under ten seconds.
Not collapse exactly.
Reassignment.
The metro zone beneath it had hardened.
Side streets that had existed a minute ago now bent away from the new safe zone boundary.
A bus route sign had flickered, then gone dead.
Delivery drones stalled in midair and re-routed mid-flight.
Silas lowered his scope.
"What the hell are you building?" he muttered.
The city below did not answer.
But it changed anyway.
A concrete barrier rose out of a sidewalk seam across the block.
It had not been there a moment ago.
A service gate on the next street sealed shut.
Three pedestrians ran toward what used to be an exit and hit a dead zone they could not see until they crossed it.
Silas watched one of them fall.
The map was being rewritten.
That was bad.
That was very bad.
He looked toward the metro district and narrowed his eyes.
Somebody down there had grabbed a node.
That changed everything.
Back in the chamber, Kaelen opened his eyes.
Lara was breathing in short ugly pulls, one hand clenched around her own collar like that might help.
Her body was near collapse.
Not dead yet.
Close enough to be useful.
He stared at her for a second longer than necessary.
Then he made the decision.
Not with regret.
With focus.
"Hold still," he said.
Lara blinked at him.
"What?"
Kaelen stepped in and caught her wrist before she could pull away.
She was too weak to resist properly, but she still jerked out of instinct.
"Don't," he said.
Her eyes flashed.
"Get your hands off me."
"Not happening."
He reached into his coat and pulled the broken utility blade he had been carrying since the first train car.
Tiny thing.
Rusted.
More a point than a knife.
He used it to cut the side of her palm.
Lara flinched and sucked in a breath that turned into a curse.
"Jesus!"
"Keep your hand open."
"You are insane."
"Yes."
Kaelen didn't waste time pretending otherwise.
Blood welled in her palm.
Not a lot.
Enough.
He seized her wrist again and dragged her hand toward the back of his neck, where the virus had already left a faint cold burn under the skin.
The source lines in the chamber noticed the motion and flickered harder.
Lara stared at him, shock cutting through the anger for the first time.
"What are you doing?"
"Surviving," he said.
Then he pressed her bleeding palm against the base of his skull.
The effect hit like a live wire shoved into both of them at once.
Lara screamed.
Kaelen's vision went white.
The node reacted to the closed circuit immediately.
Her blood and his corrupted source layer met in a loop, and the chamber came alive with a hard blue-white pulse.
The fiber roots flashed under the floor.
The air changed.
The pressure in the room broke for one ugly second and a blast of oxygen rushed back in through the vents.
Kaelen staggered but kept the circuit closed.
Lara jerked hard, every muscle in her body locking, then unlocking in a stutter.
Her knees hit the floor and she almost collapsed completely, but the charge forced her lungs open.
She sucked in air like someone surfacing after too long underwater.
Then again.
And again.
Kaelen felt the node accept the seal.
Not cleanly.
Not kindly.
But accept it.
The chamber lights steadied.
The blue and red lines in the node housing settled into a slower pulse.
The pressure in the room eased.
The oxygen came back in ragged but usable waves.
The whole chamber stopped trying to empty itself into the floor.
Kaelen pulled his hand away and took one step back.
Lara coughed hard, then looked at her own palm as if it had betrayed her in public.
"What did you do to me?" she rasped.
"A circuit," Kaelen said.
"That is not a normal answer."
"It is today."
She stared at him, breathing hard, then spat a little blood onto the floor.
"You cut me."
"Yes."
"I hate you."
"Good.
Stay mad."
Her mouth opened, then shut again.
That was probably the smartest thing she had done all night.
The node gave a final shudder.
Then the system answered.
A window opened in Kaelen's vision, bright and cold and far too calm for the kind of work just done.
[Territory Acquired]
[Class E Safe Zone Established]
[Structural Ownership: Partial]
[Shared Vital Seal Registered]
[Warning: Target Marked for Higher-Faction Purge]
Kaelen stared at the last line.
His face did not change.
But something in his stomach did.
He read it again.
Target marked.
Higher-faction purge.
Not local scavengers.
Not goblins.
Not a random cleanup unit.
The system had seen the claim.
That meant bigger players had too.
Factions with reach.
Factions with names that still mattered above ground and under it.
People who would not like a nobody stealing a piece of city infrastructure out from under them.
Lara saw the look on his face and went still.
"What?"
Kaelen did not answer right away.
He looked around the chamber.
The node was stable now, but not safe.
The roots still pulsed.
The floor still hummed.
The safe zone had been born, and birth was always messy.
But the room had changed.
It no longer felt like it was trying to eat them.
It felt claimed.
That was enough to make him tired all at once.
He let out a slow breath and finally looked at Lara.
"You're tied to this now," he said.
Her eyes narrowed.
"That sounds like a problem."
"It is."
"Wonderful."
He almost laughed at that, but the warning in his vision kept burning.
The chamber held.
The air stayed.
And somewhere above, beyond the concrete and broken rails, the city began to shuffle its routes around the new piece of territory Kaelen had stolen.
He read the last line one more time.
Then the source layer flickered again.
A second notification appeared under the first, black text on a red field, and it made the room feel smaller than it had any right to be.
[Purge Window Opens in 00:17:49]