Chương 92: Chapter 91: Maintenance Report (2)
Immortal Thunderlight [An Undead Progression Horror] · S.C SUPREME · 139 chương · ~26 phút đọc · Tạo 05/07/2026
Z-69 stepped onto the platform. The Chain Ring warmed on his finger. The entire floor vibrated. Not one rhythm. Hundreds. Turbines. Pumps. Valves. Pressure gates. Human footsteps. Structural stress. And beneath all of it, something thinner. A pressure that was not sound. A current caught inside metal, dust, old air, and living tissue. Prime Flux. Dirty. Diluted. Industrialized until it no longer resembled anything sacred, magical, or ancient. Workers probably had other names for it. Bad air. Gray snow. Lung dust.
The city's breath. Deep below, something irregular pulsed through the duct network. Small. Distant. Wrong. Lumina felt his attention shift. You hear it? Yes. The anomaly? Maybe. Mara led them down the platform stairs.
"Stay close. Floor Eight looks open, but most of it is restricted by hazard rating. If a red alarm sounds, don't ask why. Move to the nearest seal door. If a blue alarm sounds, don't breathe. If a white alarm sounds…" Jin looked at her.
"What?" Mara's eyes stayed forward.
"Pray the speaker is wrong." Jin muttered, "Comforting." Riko, the youngest worker in the crew waiting below, glanced back at them.
"Blue means airborne Flux breach," he said, like he wished he did not know.
"White means the sensors detected resonance drift in the structure." Jin stared at him.
"The structure can drift?" Riko swallowed.
"On Floor Eight, everything can drift." Mara shot him a look.
"Don't scare the survivors." Jin raised a hand.
"Too late. I'm emotionally invested in the haunted building now." They passed a row of workers queued at a corruption scan checkpoint. Each stepped into a narrow frame. The machine scanned their bodies, flashed green or yellow, and allowed them through. The display above the checkpoint cycled through clean civic language. BIO-FLUX BASELINE FEL RANGE RESONANCE DRIFT CORRUPTION MARKER CIVIC WORK ELIGIBILITY One worker's scan flashed red. The line went silent. The man froze. Two security drones descended immediately.
"Potential Corruption anomaly detected. Remain calm." The worker raised both hands.
"False read. It's from the duct burn. Check my file. I had exposure last cycle—""Remain calm."
"I am calm." His voice was not calm. His coworkers looked away. Not because they did not care. Because caring visibly was dangerous. The drones injected something into his neck. His body went slack. They carried him away. The line moved again. Mara did not stop walking. Z-69 watched the worker disappear through a side door marked: MEDICAL REVIEW / INDUSTRIAL FLUX CONTAMINATION Beneath it, smaller text blinked. CORRUPTION DIFFERENTIAL PENDING Lumina's voice was tight. Will he come back?
Mara answered before Z-69 could.
"If it's a false read, yes." Jin said, "And if it isn't?" Mara's eyes remained ahead.
"Then the city will say he was handled." Lumina's tail tightened. Handled. She tasted the word like poison. Z-69 looked at the checkpoint again. Prime Flux was not Corruption. He could feel the difference. Flux moved like a medium. A carrier. A current. Corruption moved like intent wearing disease as skin. But Crimeria's scanners did not care about philosophy. Red was red. Red meant removal. Mara took them through a staff gate into the lower filtration access zone. A crew waited there. Four workers.
All wearing maintenance harnesses, reinforced respirators, and dull green exposure monitors clipped to their collars. The monitors pulsed softly with every breath. Not protection. Accounting. One woman with thick arms and a shaved head nodded at Mara. If you encounter this tale on Amazon, note that it's taken without the author's consent. Report it.
"You brought the Tower freak?" Jin looked at her.
"Which one?" The woman glanced at his brace.
"Apparently two." Mara said, "Karin, don't." Karin shrugged.
"What? If Civic wants to throw survivors at duct ghosts, I want to see what we paid for." Z-69 looked at her. Karin looked back for exactly one second. Then found something extremely interesting on her tablet. Smart. Mara pointed to the duct map projected on the nearby console.
"Anomaly ping came from Lower Air Spine 8-F, between Filtration Columns Twelve and Thirteen. Sensor feed cut twice during last shift. We also have pressure fluctuations connecting back toward old 9-C maintenance routes." The map shifted. Blue lines marked airflow. Yellow marked pressure instability. Red marked sealed segments. Purple-gray static flickered along several older duct branches. Mara tapped one of them.
"Residual Flux density is higher than baseline. Not high enough to trigger evacuation. High enough for management to pretend it is normal." Jin's eyes sharpened.
"There it is." Mara looked at him.
"You are here to observe."
"Sure."
"I mean it."
"So do I."
"You do not."
"Correct." Z-69 stepped closer to the map. The projected lines overlapped like veins. Floor Eight ducts. Floor Nine service routes. Sealed maintenance spines. Old collapsed branches. Several paths marked inactive. One route, grayed out and half-buried under archived warnings, ran close to the sector where Ren's collapse occurred. Z-69 touched the projection. The system rejected his input. Mara handed him a glove interface. He did not use it. He only watched. Human Path. Not fully active.
Just enough to see what mattered. Pressure fluctuations here. Maintenance delay here. Sensor failure here. Flux density spike here. Anomaly ping here. Not random. Pattern. The system was not sick in one place. It was bleeding through old wounds. Z-69 asked, "Where are the previous reports?" Mara tapped the console.
"Restricted." Jin laughed.
"Of course." Mara glared at him.
"I can access current maintenance layer. Not archive layer."
"Who can?"
"AetherGrid. Civic Infrastructure. Floor Four oversight." The Chain Ring warmed. The mask behind Z-69's face stirred. Not opening. Listening. White text flickered across his vision. [STRUCTURAL PATTERN RECOGNIZED] [RESIDUAL PRIME FLUX DISTRIBUTION: NON-RANDOM] [ARCHIVE LINK: RESTRICTED / LEVEL 4] Z-69 went still. Lumina immediately noticed. Mask? Yes. What did it say? He repeated the lines through the bond. Lumina's eyes narrowed. Level Four. Z-69 looked at the duct map again. Floor Four.
Far above where provisional citizens could go. Far above Floor Nine. Far above the maintenance workers who coughed, crawled, and died in the ducts. Of course the truth lived upstairs. Jin saw his expression.
"What?" Z-69 said, "The archive link is on Level Four." Mara's face changed. Not surprise. Fear.
"How do you know that?" Z-69 looked at her.
"The Tower left a tool." Karin, the shaved-headed worker, made a small gesture against her chest. A religious one.
"Don't say Tower in the duct zone." Jin stared at her.
"That a rule?"
"Everything echoes down here." Mara cut in.
"Enough. We inspect the anomaly site, patch whatever is causing pressure leak, and leave. No archive digging from work terminals. No unauthorized access. No Jin trying to sprint through sealed ducts with one leg." Jin raised a hand.
"I feel targeted."
"You are." The crew entered Lower Air Spine 8-F. The duct spine was not a small vent. It was a tunnel large enough for cargo drones to pass through, with grated walkways bolted along one side and massive circular pipes running beneath. Air thundered through unseen channels. The walls sweated chemical condensation. Warning lights painted everything in rotating bands of amber. A fine gray film covered the rails. Not dust alone. Flux dust.
Prime Flux trapped in particulate waste, industrial residue, dried filter sludge, and old organic contamination until the air itself became a slow poison. Lumina stayed close to Z-69's neck. This place is loud. Yes. Not in sound. In pain. Z-69 glanced at her. She looked outward, eyes reflecting hazy amber light. Many people worked here while sick. Mara heard enough of that to look over.
"That's most of Floor Eight." They walked deeper. The maintenance crew moved with practiced efficiency, checking valves, thermal seals, vibration nodes. Karin carried a heavy cutter. Another worker, a thin man named Havel, monitored air toxicity and Flux exposure load from a cracked handheld scanner. The youngest, Riko, looked barely older than Ten and kept glancing nervously into the side ducts. Jin limped behind them, pretending his leg was fine. It was not. Z-69 heard the brace strain. He said nothing.
Jin would rather fall than be asked if he needed help. They reached the first pressure node. Mara knelt beside the console, removed the casing, and grimaced.
"Filter residue in the sensor array." Karin leaned over.
"That enough to cause ghost pings?"
"No." Havel checked the readings.
"Pressure dipped again." His scanner chirped. Then chirped again. Havel frowned.
"Ambient Flux just rose by three points." Karin looked at him.
"Dangerous?"
"Not for one breath."
"That's not an answer."
"It is on Floor Eight." The floor trembled under their boots. A low groan passed through the duct. Not mechanical. Not entirely. Riko whispered, "I hate this shift." Jin looked at him.
"How long have you worked Floor Eight?"
"Three months."
"Why?" Riko gave him a look like the answer should have been obvious.
"Big Sis's oxygen debt." Jin shut his mouth. Mara removed a clogged component from the pressure node. It came out coated in dark gray sludge threaded with something faintly purple. Z-69's eyes narrowed. Lumina flinched. Corruption? Z-69 crouched beside Mara.
"Do not touch it barehanded." Mara looked at him.
"I wasn't planning to lick it."
"Good." John's ghost would have been disappointed. Mara sealed the sludge in a sample tube. Havel's monitor beeped.
"Bio-residue. Human markers." The tunnel went quiet. Karin cursed.
"Worker?" Mara looked at the tube.
"Maybe old contamination." Havel shook his head.
"Fresh enough to register." He adjusted the scanner.
"Flux saturation is too high for normal duct burn. The tissue adapted before it degraded." Riko whispered, "Someone got dragged into the filters?" Mara's voice hardened.
"Don't start stories." But Lumina had gone still. Not frightened. Listening. Z-69 felt her mind press outward, blue-white and thin as a thread. There is someone in the residue. Z-69's gaze shifted. Alive? Lumina did not answer immediately. That was answer enough. Conscious? Her ears lowered. Parts of him are. The duct seemed to tighten around them. Z-69 looked down the tunnel.
"There." Everyone turned. At the edge of the amber light, far ahead, something crossed the walkway. Fast. Bent. Human-shaped only because the eye wanted mercy. Riko gasped. Karin raised her cutter. Mara snapped, "Lights." Havel triggered portable floodlamps. White beams cut through the haze. Nothing. Only wet metal. Pipes. Condensation. A smear of dark residue on the walkway railing. The smear twitched once beneath the light. Then went still. Jin's fingers tightened around his crutch.
"That was not a sensor ghost." Mara activated her comm.
"Control, this is Crew 8-F. Visual contact with possible anomaly near Column Thirteen. Residual Flux activity confirmed. Requesting containment support." Static answered. Then a voice.
"Crew 8-F, support unavailable. Continue inspection. Avoid direct engagement. Log all findings." Mara stared at the comm.
"Unavailable?"
"Containment units redirected to upper-sector incident." Jin laughed once.
"Of course they are." Mara's jaw tightened.
"Control, we have possible worker casualty in active duct spine."
"Log all findings." The channel cut. Karin spat through her respirator filter.
"Upper floors sneeze, lower floors bleed." Lumina's voice was cold. They heard danger and sent paperwork. Z-69 drew the Human's knife. Not Heaven-Sundering. Not yet. The Human Path flickered. Weakness reading. Collateral control. Duct structure fragile. High-voltage discharge dangerous. Thermal cutter hazardous near volatile residue. Workers unarmored. Anomaly unknown. Prime Flux density unstable. Corruption markers unclear. Best approach: contain, observe, disable without duct rupture. He stepped forward.
Mara grabbed his sleeve.
"Do not chase alone." Z-69 looked at her hand. She released it slowly.
"You don't know these ducts," she said. He looked down the tunnel.
"No." Then at her.
"You do." Mara held his gaze. Then exhaled.
"Damn it." Jin smiled.
"I know that tone."
"It means I'm going to regret this."
"That's most good plans."
"No," Mara said.
"That's your plans." They moved toward Column Thirteen. Slowly. Karin and Havel stayed near the pressure node. Riko remained behind them, holding a lamp with both hands. Mara led. Z-69 followed. Jin came despite the brace. Lumina's glow dimmed intentionally so she would not become a beacon. The duct spine narrowed ahead where old construction met newer reinforcement. Pipes overlapped in ugly bundles. Several had AetherGrid tags stamped onto them. Newer metal. Worse work. Jin noticed too.
"Cheap replacement." Mara's voice was grim.
"After the 9-C collapse, AetherGrid won the emergency repair bid." Jin's laugh had no humor.
"They caused the wound and sold the bandage."
"Allegedly."
"Don't talk like a report." Mara did not answer. They found the first body fragment near a drainage grate. A hand. Or what had once been one. Gray skin. Fingers elongated by mutation. Thin crystalline veins had formed beneath the nails, dull purple under the floodlamp. Flux mutation. Not clean. Not stable. Not dead. Worker ID band still attached to the wrist. Riko gagged behind them. Mara knelt slowly. Her face did not change. But her breathing did. She scanned the band. The device beeped.
WORKER ID: DORIAN KRELL STATUS: ACTIVE SHIFT DEPARTMENT: FLOOR 8 FILTRATION ASSIGNMENT: LOWER SPINE 8-F MEDICAL FLAG: CHRONIC FLUX EXPOSURE MUTATION MONITORING — LOW RISK Jin read the name.
"Krell?" Mara's eyes darkened.
"You know him?" Riko whispered, "Everyone knows him." Jin looked at the boy. Riko swallowed.
"They call him Saint of Floor Eight." Karin's voice crackled through comms.
"Kid." Riko ignored her.
"He patched masks without charging. Fixed vents in old housing blocks when dispatch ignored tickets. Bought medicine credits for workers who failed scans. Big Sis said he was stupid because he helped people who couldn't pay him back." Mara's voice was rough.
"He was stupid." Riko looked at her. She did not look away from the severed hand.
"But he was ours." The hand twitched. Everyone froze. The fingers bent backward. Not death spasm. Signal. A faint pulse moved through the mutated tissue, traveling into the wall through residue threads. Havel's scanner screamed through the comm.
"Flux spike! Same signature as the sludge!" Then a sound came from deeper in the duct. A wet, scraping breath. Lumina's voice entered Z-69's mind. He is still alive. Z-69's eyes narrowed. How much of him? Lumina was quiet for a moment. Enough to hurt. Mara stood slowly. Her voice came out rougher.
"Dorian." The duct ahead answered. Not with words. With a groan that made the pipes vibrate. The pressure dropped. Lights flickered. Havel's voice crackled through comms.
"Mara, pressure spike behind you. Something is pulling air from Column Thirteen." Karin shouted, "The sludge is moving!" Jin turned.
"What do you mean moving?" The answer came before the comm could. Dark residue began creeping along the pipe seams. Threadlike. Wet. Purple-gray. Prime Flux moved inside it like dirty lightning trapped beneath skin. Not enough to glow. Enough to remember motion. It moved toward them against the airflow. Riko backed up too fast and hit the railing.
"Saint save us…" Z-69 stepped in front of Mara.
"Back." Mara did not move.
"That's Dorian."
"No," Z-69 said. The residue climbed the walls. The Chain Ring burned cold against his finger. The Human Path gave him possibilities. The Hunger gave him simpler ones. Lumina's fear touched his mind. Not for herself. For the man in the duct. For whatever remained. Z-69 watched the purple-gray threads gather around the pressure pipes. Prime Flux was the carrier. Corruption was the command trying to write over flesh, metal, air, and memory at once. Dorian was somewhere inside the sentence.
The shape at the end of the duct stepped into the flickering light. It had once been a man.
