Raze hit the blast door with a suppression burst and accomplished nothing except burning the skin off two knuckles.
Six inches of lockdown steel backed by substrate-reinforced framing. The door was designed to survive a dungeon break. His fists weren't going to change that.
"Vent system," Mira said, already scanning the ceiling. "There. Left of the main trunk."
A maintenance vent cover hung loose where the siege had cracked its mounting bolts. Behind it, a shaft just wide enough for a human body angled upward and left toward the junction's air circulation system.
"That'll put us in the upper gallery above the main chamber," Mira said. "If the gallery grating held through the siege."
"If it didn't?"
"Twelve-meter drop onto concrete."
Raze grabbed the vent cover and tore it free.
"Ladies first."
"Age before beauty," Mira said, and went in.
The shaft was tight. Mira's injured arm scraped the walls and she breathed sharp through her nose each time but didn't slow. Raze followed, shoulders wedged against metal that had gone cold and dead. No substrate glow. No hum through the walls. The node's regulation field had pulled back from this section entirely, leaving the infrastructure as lifeless as ordinary stone and steel.
Twenty meters in, the shaft branched. Left climbed toward the gallery. Right dropped into what Mira said used to be a filtration closet.
They went left.
The alarm was louder here, transmitted through the ductwork in a distorted wail that made Raze's teeth hurt. Underneath it, gunfire. Not the controlled bursts Asha used for wave defense. Scattered, panicked, with long gaps between shots that meant people were repositioning too often.
They reached the gallery grating. It held. Barely. Three bolts out of eight remained, and the metal flexed under Mira's weight.
Raze looked down into the junction.
The chamber was a mess.
Furniture overturned. Marlen's relay station shoved sideways. Two troopers down near the southern wall, one dragging the other by the vest strap. Dael had Sori behind the heavy's dead chassis with three other civilians, bolt gun aimed at something Raze couldn't see from this angle.
Asha crouched behind the central column, reloading. Blood on her face from a cut above her left eye. She fired three rounds toward the hub area, then ducked back as something liquid and dark splashed against the column where her head had been. The stone hissed. Metal fittings on the column's base started dissolving.
"Corrosive blood," Mira whispered. "That's new."
Raze shifted to see the hub.
The thing near Goh's cocoon was nothing like Gael's forces.
No bulk. No armor plating. No brute-force design. This organism was long and narrow, built like an eel crossed with a surgical tool. Matte black skin that absorbed light instead of reflecting it. Six limbs, each one ending in a flat pad covered in fine filaments that gripped surfaces like gecko feet. It moved across walls and ceiling as easily as the floor, flowing between positions so fast that Asha's shots kept landing where it had been half a second ago.
Its head, if you could call it that, was a smooth dome with no visible eyes or mouth. Just a cluster of thin tendrils at the front that waved in Goh's direction like antennae seeking a signal.
Every time a round hit it, the wound closed in under three seconds. The blood it shed ate through whatever it touched: steel, concrete, fabric. A trooper's boot had a hole where the splash had landed, and the man was fighting barefoot on one side.
"It's not engaging them," Raze said. "It's ignoring them."
The organism flowed along the ceiling toward the cocoon, took two rounds from Asha, dropped to the floor, circled behind the hub column, and reached for Goh's shell with those front tendrils.
Mun threw himself between it and the cocoon.
The organism didn't attack him. It flowed around him. Over him. Treated him like furniture and extended its tendrils past his shoulder toward the white substrate surface.
Mun grabbed one tendril with both hands and held on.
The organism paused. Then it flexed, and Mun slid across the floor like he weighed nothing.
Jin caught him before he hit the wall.
Raze dropped through the grating.
Twelve meters. He hit the floor in a roll that sent pain screaming through his clamp-damaged forearm and came up running. The organism's core signature hit his senses at five meters and his glands fired so hard his vision doubled.
Dense. Incredibly dense. Whatever core powered this thing had been built in a Foundry maturation chamber with concentrated growth medium, and Devour wanted it with an intensity that made the waste cores in the staging nest feel like crackers before a feast.
He swung for the organism's midsection and connected.
The impact sent it skidding off the cocoon's base. It hit the far wall, stuck there with its gecko pads, and oriented on him for the first time.
No eyes. But it was looking at him.
Then it dismissed him and flowed back toward the cocoon.
Raze intercepted it midway. Grabbed two of its limbs and pulled. The limbs stretched like rubber, then snapped back with enough force to throw him sideways into the relay station.
Mira dropped from the gallery behind it.
Her knife went into the organism's back where a spine would be on something with a skeleton. The blade sank four inches and stuck. The wound closed around it, trapping the knife.
"Courier," Mira said, pulling free a backup blade. "It's a Foundry courier. Don't let it touch the cocoon."
"Doing my best," Raze said through his teeth, glands screaming.
Asha fired from the column. Two rounds punched through the courier's torso and exited clean. The holes sealed in two seconds. Corrosive blood spattered the floor and ate a thumb-sized hole through the concrete.
"Conventional rounds aren't holding," Asha called. "Ashen, can you burn it?"
He could. If he could focus past the hunger long enough to channel a suppression burst instead of just biting into the thing.
The courier reached the cocoon again. Its tendrils touched the white substrate surface and began vibrating at a frequency Raze could feel in his jawbone. Where the tendrils contacted the shell, small dark lines began spreading across the white surface like cracks in ice.
Goh's eyes opened. Her mouth moved but the speakers only produced static.
"It's writing to the node!" Jin shouted from behind the column. "It's injecting something through Goh into the regulation network!"
Mira drove her backup knife into the courier's head dome. The blade went through. The organism didn't react. Kept its tendrils pressed to the cocoon. Kept writing.
The dark lines spread another centimeter.
Raze grabbed the courier's body with both hands and pulled. His glands fired at contact intensity and his mouth flooded with saliva so fast he nearly choked. The courier's skin was warm and its core pulsed just beneath the surface, right there, dense and available and screaming eat me eat me eat me through every absorption channel in his body.
He pulled it off the cocoon. It detached with a wet sound and left dark residue on the white shell.
Then it wrapped three limbs around his torso and held on.
Not attacking. Anchoring. Using his body mass as leverage to swing back toward the cocoon.
Raze dropped to the floor and rolled. The courier went with him, limbs tightening, tendrils now waving at his face, trying to find a node interface that didn't exist because he wasn't fused into anything.
Asha and Mira hit it simultaneously. Rounds and knife. The courier shrugged off both and regenerated while still wrapped around him.
Its core pulsed against his chest.
The hunger said: take it.
Not the hunger's usual background hum. A command. Loud, clear, delivered from whatever part of him had stopped being fully human months ago.
Take the core. Eat it. Power the burst. Kill the thing.
Mira's voice from above: "Raze, if you can't burn it out, we lose Goh."
He bit down on the courier's neck.
Not a choice he made. A choice his body made while his brain was still calculating alternatives.
His teeth broke through matte black skin and hit the dense tissue beneath. Devour activated at contact and began pulling. The courier's core energy flooded into his mouth, his throat, his chest — thick, hot, tasting of salt and ammonia and something metallic that coated his tongue like oil.
Three seconds of uncontrolled consumption.
His glands absorbed enough core energy to charge a burst twice as strong as anything he'd managed during the siege.
He released the bite, jammed both hands against the courier's torso, and fired the suppression burst point-blank into its body.
The courier's regeneration failed.
Not gradually. All at once. Every wound that had closed in seconds reopened simultaneously. Asha's bullet holes, Mira's knife punctures, the bite mark, the impact fractures. The organism came apart at every point of damage like a zipper running in all directions.
It slid off Raze's body in pieces.
He lay on the floor, mouth and chin smeared with black fluid, glands cycling so fast the heat vents behind his ears glowed red and threw small shadows on the ceiling.
Mira kicked the courier's head dome away from Goh's cocoon and checked the shell. The dark lines where the tendrils had contacted were still visible but no longer spreading.
"Writing stopped," she said. "Shell's intact. Whatever payload it was carrying didn't finish installing."
Jin reached the cocoon and pressed her hand to Goh's face through the substrate.
"Goh. Can you hear me?"
Static from the speakers. Then, thin and exhausted: "Heard... everything. Fought it... from inside." A breath that made the whole cocoon flex. "Didn't let it... rewrite the root tables."
"You did good."
"Did... necessary."
Asha checked the breach point. A narrow channel in the floor behind the hub that nobody had noticed because it emerged through a hairline crack in the substrate, no wider than a forearm. The courier had compressed itself to fit through. Purpose-built infiltration.
"This channel doesn't appear on any of Goh's maps," Asha said.
"It wouldn't," Mira said. "Couriers make their own paths. They're designed to reach node interfaces through whatever route exists, even if that route is a crack in the floor."
"Can more come through?"
"Seal the crack and they'll find another one. You'd need to collapse the channel at depth to cut access."
Asha looked at the dead courier's remains already dissolving into corrosive residue that ate small pits into the floor.
"Marlen. Add node defense to the permanent rotation. I want someone on Goh's cocoon at all times."
"Already reassigning," Marlen said from behind his cracked relay. He'd been running logistics the entire fight. His hands were shaking, but the feed was live.
---
Raze sat against the far wall with the taste of the courier still in his mouth.
Not just taste. Data.
The core fragment he'd consumed was doing something inside him that normal core absorption didn't do. Regular cores gave skills or stats or physical changes, processed through Devour's standard integration pathways. This core was delivering information.
Fragments. Sensory impressions from the courier's operational memory, playing back through his nervous system like a fever dream.
He closed his eyes and let them come.
Dark water. Channels carved through deep stone, old and smooth, lit by bioluminescent growth that pulsed in wavelengths no human eye could normally see. He was moving through them fast, propelled by current and muscle, heading up and east through a network of interconnected passages that branched and merged and branched again.
Other shapes in the water. Dozens. Hundreds. Each one different, each one moving with the same purposeful direction: up. Toward the surface. Toward positions they'd been assigned before they left the growth chambers.
A flash of something larger. A central space, cathedral-vast, filled with fluid and growth medium and organisms in various stages of completion. Maturation pods lined the walls in rows that extended beyond what the courier's limited senses could resolve. Intake channels fed raw material from deeper sources. Output channels carried finished organisms toward distribution veins.
Site eleven. The distribution hub. But also something more. A command center. A beating heart of logistics and purpose and coordinated deployment that had been running continuously for longer than sixty days. Much longer.
The courier's last sensory fragment was a voice. Not sound. Vibration through water, translated by biological receivers into meaning.
*Deliver. Write. Return.*
Three words. The courier's entire mission. Deliver the payload to the nearest node interface. Write the command sequence. Return for the next assignment.
Simple. Efficient. Repeatable.
One courier for one node. And the Foundry had been building couriers in batches.
Raze opened his eyes.
Mira stood over him with her knife in her hand.
"Your glands are still cycling," she said. "And your pupils haven't been the same size for about two minutes."
"I saw the Foundry."
Her knife hand went still.
"Through the core?"
"Through the courier's memory. The distribution hub. Site eleven." He wiped his mouth. His hand came away black and red. "Mira, it's not four hundred. The channels I saw were carrying organisms continuously. Batches moving through in cycles. Whatever Goh estimated from flow data, it's the floor, not the ceiling."
Mira crouched.
"How many?"
"I don't know the number. I know the scale. The maturation facility was the size of this entire junction level. Rows of pods going back farther than the courier could see. And the output channels were running full."
She sat back on her heels.
"That changes everything we just planned."
From the cocoon, Goh's speakers crackled once.
"Raze." Thin. Tired. But the word had teeth. "Don't eat anything else from the Foundry until we understand what that payload was trying to write."
