The Corven dump smelled of burnt plastic above ground, but the disposal chute below it carried a colder smell from things nobody listed. Vell recognized it from transit rooms where people pretended not to see bodies.
Yenna lowered herself first through the maintenance hatch, keeping her working chain wrapped around a pipe while Vell followed with the drain map folded inside his shirt.
The chute ended above a concrete shelf with old conveyor tracks disappearing into darkness on both sides. One track carried furnace heat while the other carried fresh cart marks.
"The nest is under the furnace line," Yenna said, pointing toward the warm air escaping from the left tunnel, "Corven used to burn what it could not sell."
Vell heard a cart rattle beyond the right tunnel, making him pull her behind a broken sorting cage before either reached the furnace line.
Two dump workers pushed a steel trolley through the dark, its covered load leaving red drops across the tracks. Neither man looked down at the red trail beneath their rolling wheels.
They stopped at a numbered door rather than the furnace, entering a cold-store room after one worker checked that the chute hatch had shut behind them.
Yenna watched the door close, then looked back toward Vell without speaking. Her right hand stayed fixed around the chain-knife's worn wrapped grip.
The warm tunnel held their parasite core, but the trolley had just supplied a reason to learn what Corven fed it.
Vell waited until the workers pushed the empty trolley back out, then crossed the tracks while the wheels hid the noise from their shoes. The cart's return meant whatever entered had stayed behind the numbered door.
The cold-store lock gave way under his knife after three careful turns, opening into racks packed with covered human bodies.
Tags hung from bare wrists beside each rack, while clear storage bins held the hollow core housings removed from their chests. Corven had arranged the theft with catalogued dates beside every stolen body.
Yenna did not move until Vell caught the sleeve of a body near the closest wall.
"Corven listed him as retired," she said, reading the hunter's name on the tag, "I saw his farewell notice in the guild hall last winter."
The next rack held two more names that appeared in public casualty rolls, except the bin beside them was marked incinerated with yesterday's date. Each false entry gave the guild a clean excuse for an empty chest.
Vell photographed the tags, the bins, plus the ledger book left open beside a medical sink.
Rynn's East District numbers had been a pattern, but the Corven list showed the same theft moving through one small guild dump. The cull had routes, schedules, plus people paid to keep them quiet.
Yenna pulled a body cover back over the dead hunter's face, then turned toward the furnace tunnel before grief could make the room unsafe.
"Take the book," she said, checking the tracks through the doorway, "we came for a core and found a pantry."
The ledger weighed less than it should have, but Vell took it because photographs could vanish when the men who owned the dump arrived. Paper could burn too, but it gave Luna a trail to verify.
A warning horn sounded above the cold store as the chute hatch began cycling behind them.
The workers had found the broken lock sooner than Vell expected, leaving them with one tunnel toward the nest before the tracks filled with guards. The warning horn turned every second in the cold store into evidence.
"Furnace line," Yenna said, leading with her free chain, "they will seal the chute before they search the waste."
The left passage ran beside a row of heat vents, each covered by a wheel valve that dumped furnace air beneath the ground.
Fresh ash shifted across the floor ahead, marking several Ash-Tunneler boreholes without showing the creatures themselves. Their movement below the ground made the vents breathe at different intervals.
Vell stopped at the first valve rather than walking into the center of the nest. A direct charge would shatter the compatible core he came to recover.
"They come toward heat," he said, crouching beside the valve wheel, "one at a time if I feed the right vent."
"Then feed it before Corven sends people through our back," Yenna said, taking position near the cold-store junction with her chain knife raised.
He turned the first wheel slowly, forcing hot air through a narrow grate beyond the nearest borehole. The changed current gave the nearest Tunneler something warmer nearby to follow.
The ash lifted, then a plated head broke through beside the grate, following the heat with its nose open to the vent. Its pale throat stayed exposed only while it searched the grate beneath its plated jaw.
The Ash-Tunneler was longer than Vell expected, with soot-dark plates along its back and pale tissue under its throat where the core pulse beat. Those back plates would turn a careless knife into broken metal fragments immediately.
[Analyze: Ash-Tunneler. Core Grade: 2.]
Analyze marked a parasite-compatible core behind the jaw, plus a heat gland embedded beneath the first plate seam. Vell needed the gland intact before it cooked itself against the grate.
The creature's core pulsed in a stable rhythm despite the waste choking its nest. That stability made it useful for Yenna, but only if Vell took it cleanly.
He checked the core's rhythm once more before committing the knife to its housing. A damaged harvest would leave them with ash, blood, plus no safer procedure.
Vell needed both parts without shattering either, which meant the animal had to stay on the grate while he reached the vulnerable side. Yenna would have to control its heavy head while he cut beneath the jaw.
Yenna saw the problem before he said it, flicking her chain through the gap beneath the Tunneler's jaw to catch a loop around its foreleg. She chose the hold without waiting for him to give direct orders.
"Cut fast," she said, bracing her shoulder against the wall, "I can hold one thing for a minute."
The beast lunged toward the chain tension, pulling Yenna half a step from the junction while its tail smashed ash across Vell's legs. Its weight tested the scarred shoulder that she had chosen to risk.
He moved along the hot grate, driving his knife behind the jaw until the blade met the dense core housing beneath its throat.
Metal struck concrete from the cold-store passage, followed by men shouting that the intruders had taken the ledger. The guards now had a reason to enter the nest behind them.
Yenna tightened the chain despite the silver scar heating across her collarbone, keeping the creature's head turned away from Vell. Her right chain bit into its foreleg hard, keeping its jaws off him.
The Tunneler thrashed until it broke the vent cover, then rose toward her with both foreclaws tearing at the wall. The ruined grate no longer held its throat in place for Vell.
She could release the chain and save her arm, but its jaw would reach Vell before he could withdraw the intact core. Yenna used her remaining burst before the choice turned against both of them.
Yenna planted her feet against the furnace pipe, then used a burst that made the chain pull straight through both hands.
The output locked her right shoulder for an instant, but the movement dragged the beast's throat back over Vell's knife. Pain took her arm for the exchange, yet it gave him the seam.
He cut through the housing seam as the creature struck the grate, removing the Grade Two core before its body could crush it.
The heat gland came free beneath the first plate seam when he used the broken vent cover to pry it loose. Its heat stung through his wrapped fingers before he sealed the pouch.
Ash-Tunneler blood smoked on the grate, forcing Vell to pack both materials before the heat ruined their function.
[Ash-Tunneler breakdown: +30 FE.]
[Harvest: +40 FE | Forge Energy: 310.]
Yenna saw 310 settle, then forced feeling back into her locked shoulder against the wall.
Two Corven guards entered the passage, then stopped when the dead animal's tail blocked their route to the junction. Their rifles came up without a clean firing line toward either intruder.
"Drop the core," one man said, lifting a shock rifle toward Yenna, "that nest belongs to Corven."
"So did the people in your cold store," Vell replied, holding up the ledger before he slipped it inside his jacket.
The guards looked toward the open cold-store door, which gave Yenna time to throw her chain around the valve wheel. She used their shock to take control of every nearby furnace vent.
She pulled with her good side, opening every furnace vent along the tunnel before the guards understood what she had changed.
Heat roared through the grates, driving the remaining Ash-Tunnelers upward between the guards and the exit. Vell left Corven's armed men with the animals they had been feeding.
Vell followed Yenna through the smoke while the men fired at moving plates rather than risk the tunnel closing around them.
They reached the disposal shelf when an Association seal came down over the chute hatch with a heavy mechanical lock. The lock landed before Yenna could throw a chain through the opening.
Inspector Dorr's voice entered through the horn speaker above them, with a calm delivery that made the workers stop shouting. His arrival meant the fire had been planned before their break-in.
"Corven reports a hazardous breach," he said, as the furnace line started burning behind them, "nobody leaves until the inspection is complete."
Yenna held the parasite core against the heat-gland pouch, then stared up at the sealed hatch with soot on her face. She checked the side tunnel before asking Vell what came next there.
"He knew we were here," she said, checking the only remaining tunnel, "which means the dump was never the trap's target."
Vell felt the safehouse key against his pocket, then looked at the fire spreading along the vents Dorr had just sealed them beneath. The evidence had brought them here, yet Dorr wanted the materials burned too.
The inspector had locked them inside a furnace with the evidence he wanted gone.