Chương 25: Chapter 24: Laser Segment - The Killing Sensors
Immortal Thunderlight [An Undead Progression Horror] · S.C SUPREME · 139 chương · ~25 phút đọc · Tạo 05/07/2026
The metal door slid open. White light poured out. Not gently. Not like illumination. Like violence. For one instant, entering the room felt less like stepping into a chamber and more like walking into the mouth of a miniature sun. There was no visible lamp. No obvious source. No clean direction. The light simply existed everywhere, cold and merciless, filling every corner until shadow itself seemed illegal. Ten raised one arm over his eyes.
Lumina flattened against Z-69's shoulder, her fur bristling from nose to tail. Z-69 only narrowed his eyes. The chamber revealed itself one line at a time. Lasers. Thousands of them. Hair-thin beams stretched from floor to ceiling, wall to wall, crossing one another in shifting layers. Some drifted slowly. Some pulsed. Some snapped into new positions so fast they looked like cracks tearing through the air. White. Green. Red. Purple. The whole chamber breathed through light. In. Out. Open. Close.
A maze made of death and geometry. Heat hit Z-69's face first. Then pressure. Then the faint prickling sensation of something watching from every direction. Lumina growled low in his mind. These are not normal lasers. Her ears twitched. Once. Twice. Then her expression changed. Heart-rate detection. Neural-wave monitoring. Bioelectric targeting. A pause. Her tail stiffened. It is reading emotions too. Ten's hand tightened around Z-69's sleeve.
"Emotions?" Lumina's eyes stayed fixed on the chamber. Fear. Aggression. Panic. Probably intent to move. Maybe pain response.
"That's insane," Ten whispered. Z-69 stared into the laser web.
"No." The beams shifted slightly, as if hearing him.
"It is efficient." Ten looked at him like he had just said something deeply offensive to common sense. Z-69 stepped forward. One boot touched the floor inside the room. Instantly, a green beam bent off its path. It did not rotate mechanically. It curved. Like a predator turning its head. The beam swept across his face, slicing through the air where his eyes had been a fraction of a second earlier. Z-69 leaned back. The beam hissed past his nose and burned a thin line of heat through the air.
Ten jerked backward so hard he nearly fell.
"Don't step like that!" Z-69 retreated half a step, still watching the beam.
"The system reacts to biology." The green laser slid back into the maze.
"I move. It changes." Not just movement, Lumina said. Electrical signals too. She turned her head toward him. And because you are… you, it is ranking you as the highest threat in the room. Ten's face drained of color.
"Highest threat means it aims at him first?" Yes. Lumina's answer came bluntly. It grades everything. Me. You. Him. Her gaze moved to Z-69's chest. And he is glowing like a walking disaster with a target painted on his heart. Z-69 nodded slightly.
"Reasonable." Ten stared at him. Then raised his voice for the first time since entering the Gauntlet.
"That is not reasonable!" His grip tightened.
"If you get hit—""I have already died once." The answer came so calmly it cut the protest apart. Silence followed. White light trembled across Ten's face. Fear. Confusion. Frustration. Then Z-69 lifted the Heaven-Sundering Short Blade and gently touched the flat of the metal against the nearest beam. CRACK. The blade recoiled. Not from heat. From impact. Unauthorized reproduction: this story has been taken without approval. Report sightings. As if the light had struck back.
A ripple of distorted brightness spread through the nearby cluster. The lasers adjusted. Slowly. Deliberately. Learning. Ten suddenly clutched his chest.
"Don't touch the purple ones." Z-69 looked at him. Ten's breathing quickened.
"The purple beams. They're wrong."
"Wrong how?"
"I can't explain it." His fingers pressed harder into his shirt.
"Not heat. Not exactly. When they get close, my heart beats harder. My head feels like a bell being rung from the inside." Lumina blinked. I have met psychics, mutants, and one man who could smell electricity. Her eyes narrowed at Ten. But you are new. Z-69 glanced into the room again.
"So you can sense which ones are deadliest." Ten shook his head.
"Not see." He swallowed.
"Feel."
"That is enough." They began. Z-69 entered first. This time, he followed the angle Ten had indicated instead of taking the direct path. A red beam fired upward from the opposite side and slashed through the exact space his torso would have occupied. The air screamed. Thin. Sharp. Ten went rigid.
"I… I was right."
"Not right," Z-69 corrected. He stepped over a low green beam.
"Accurate." The word was small. But it landed. Ten's shoulders loosened by a fraction. Not confidence. Not yet. But belief had started replacing panic in pieces. They moved deeper. The maze did not remain still for them. Every step changed it. A white beam vanished in front of Z-69's knee. A green beam appeared beside his throat. A red line swept low across the floor. A purple line drifted lazily overhead, almost gentle, which made it worse. Lumina dropped from Z-69's shoulder.
Her paws touched the floor without sound. The lasers did not immediately target her. Then several beams twitched toward her crystal. She hissed. I can interfere a little. Blue light gathered around her paws. Only a delay. Maybe 0. 01 seconds. Maybe less. She looked at Z-69. If you are fast, that is enough.
"Understood." The passage narrowed until only one person could pass at a time. Z-69 took the lead. Ten stayed close behind him, every breath uneven, every muscle wound tight. The Heaven-Sundering Short Blade extended slightly in front of Z-69. Not to cut. To feel. The blade tested the air like a hand hovering above a flame.
"Left!" Ten shouted. Z-69 leaned. A dense purple beam hissed past his cheek, missing by less than an inch. A burn line opened across his skin. The flesh blackened. Then slowly began to seal. Ten's voice cracked.
"It almost cut you!"
"It is fine." Z-69 stepped under two crossing lines.
"It did not reach the bone."
"That is not reassuring!" He thinks exposed bone is a reasonable injury threshold, Lumina said flatly. We are working with a deeply broken standard. Z-69 ignored her. The chamber changed pattern. Ahead, two rotating laser clusters crossed in multiple places, forming a moving lattice of white, green, and violet lines. It expanded. Contracted. Expanded again. Like a lung made from knives. Z-69 stepped once. Then stopped.
"Too fast." Ten stared at the pattern. Sweat gathered along his forehead. His pupils moved with the lasers, trembling at each shift.
"You can't move against it," he whispered.
"Explain."
"It has a cycle." Z-69 looked at him.
"A cycle?"
"Like breathing. Or a heartbeat." Ten's voice shook.
"It opens and closes. I can feel when it tightens." Lumina's tail flicked. Suddenly the kid is ridiculously useful. Z-69 placed one hand on Ten's shoulder.
"You lead." Ten froze.
"M-me?"
"Yes."
"I'm not a fighter."
"You are the eyes." Z-69 raised the blade.
"I am the hands." Lumina lifted her chin. And I am the second brain. Z-69 glanced at her.
"You are the cute mascot." Lumina froze. For one heartbeat, absolute silence. Then her tail rose in pride. You finally understand my role. Ten looked between them like he had just been forced to witness a religious event he did not understand. Then he inhaled. Deep. Shaky.
"There." He pointed to a tiny gap between three shifting lines of white and green.
"Step there. Now." Z-69 moved. Not rushed. Not hesitant. A clean burst of motion. The instant he crossed, the opening snapped shut behind him. The beams slashed through the air where his chest had been. Ten followed. His sleeve smoked where a green line grazed it. He did not scream. Good.
"Right!" Ten said. Z-69 shifted.
"Down—no, stop! Stop!" Z-69 froze. A purple beam dropped from above and carved through the exact space his head would have entered one breath later. Ten wiped sweat from his brow.
"The system…" His voice was smaller now.
"It's trying to trick me."
"Then don't let it." Ten looked at him. Not like a frightened contestant. Like a boy staring at the only lantern left in a world that had already gone dark.
"Yes." They kept moving. One command at a time. Left. Wait. Step. Duck. Stop. Now. The rhythm became brutal. Ten felt. Lumina delayed. Z-69 executed. The chamber hated them for it. The beams began shifting faster. Shorter windows. False openings. Dark gaps that looked safe, then filled with invisible heat. The lasers were no longer only measuring biology. They were measuring trust. And adapting to punish it. Halfway through the maze, another team entered. Two survivors. Both wounded. Both panicking.
Both already dead. They stumbled into the light from a side door that must have connected from another route. One had a bleeding scalp. The other held a cracked energy shield that flickered uselessly across his left arm. Neither understood the cycle. Neither stopped to learn it. The first man ran. A green beam touched his shoulder. There was no scream. No blood. No dramatic spray. His body simply split from shoulder to hip. The two halves collapsed separately, smoking before they hit the floor.
The surviving teammate broke. Completely. His breathing turned wild. His eyes lost focus. His movements became pure animal panic. He shoved into Ten from the side.
"Move! Move! I need to get out!" Ten stumbled. Z-69 caught the man by the collar and yanked him back.
"Do not go that way." The man twisted in his grip.
"I wanna live! Who the hell do you think you—" He tore himself free and lunged forward anyway. Z-69 did not stop him a second time. Did not speak. Did not move. A purple beam shifted. The man vanished into drifting black particles before his next step fully landed. Ten's whole body shivered.
"You let him go."
"Yes."
"Why?" Z-69 looked forward.
"He stood wrong." Lumina nodded grimly. Panic stance. Once someone moves like prey, they die like prey. Ten stared at the fading ash. He understood. Not emotionally. Not fully. But enough. The deeper they went, the more vicious the maze became. Red, green, white, and purple lines tangled together like glowing serpents in a pit. Cross-beams formed sudden knots. Safe gaps appeared too briefly to trust. The chamber no longer felt like a trap. It felt like an execution system enjoying itself. Then Z-69 made a mistake.
Not from fear. From calculation. A knot of beams closed too fast ahead, and the next safe gap opened too far to reach cleanly with Ten behind him. He swung the Heaven-Sundering Short Blade. A thin pulse of violet lightning rippled from the edge, distorting several beams for a fraction of a second. It worked. The path opened. They crossed. Then the cost arrived. Black cracks spread across the side of Z-69's neck. His flesh fissured like ceramic heated too many times. The warning band on his wrist flickered red.
Ten saw it.
"Stop using lightning!" Z-69 did not answer. Ten grabbed his sleeve harder.
"You'll kill yourself!"
"It only itches." Ten stared at him in disbelief.
"Itches?" His voice cracked.
"You're burning yourself alive!" Lumina snapped her tail across Z-69's face. Hard. He is right. Stop trying to look cool while self-destructing. Z-69 looked at her. The silence that followed frightened Ten more than any answer would have. Because it meant the warning had landed. Because it meant the damage was real. Ten bit the inside of his lip hard enough to taste blood. Fear for himself began to fade. Fear for Z-69 took its place. And beneath that fear, something fierce and steady began to take root.
The final stretch came into view. It looked easier. Which made it worse. Fewer visible beams. More open space. Larger dark zones between the light. Too clean. Too inviting. Ten suddenly raised his voice.
"Wait!" Z-69 stopped immediately. Ten stared into the dark gaps. His face tightened.
"There are hidden lasers." Lumina blinked. Where?
"The dark zones." Z-69 looked down at the floor.
"How do you know?" Ten's breathing had turned shallow again.
"The dark parts feel cold. Wrong. Dead." He pressed one hand to his chest.
"The warm zones are safe. It's reversed." Lumina's eyes widened. This kid's senses are broken in a genuinely impressive way. Z-69 nodded once. Then they advanced through the bright sections instead of the shadows. The hidden lasers remained invisible. Silent. Waiting. Ten had been right again. Step. Stop. Left. Forward. Wait. Now. Each command cut another piece off the distance between them and the exit. The door waited ahead. Only a few more steps. Only a few more breaths. Then it happened.
The final laser was the smallest in the room. Almost invisible. A thread of white light hidden beneath glare. It fired from the lower corner at an angle so precise and so fast that Ten had no time to warn. Lumina had no time to delay. It went straight for Ten's heart. Z-69 stepped between them. The beam sliced through his forearm. A hard smell of burning flesh exploded into the air. His skin blackened instantly. Cracks raced upward from the wound like fire trapped beneath dried clay. Ten screamed.
"No!" Raw. Human. Horrified. Z-69 lowered his arm and examined the charred cut with detached curiosity, as if the limb belonged to someone else. Ten grabbed his wrist with both hands.
"You almost lost your arm!" His voice shook from rage, fear, and something dangerously close to panic.
"Why would you do that?"
"It is fine." Z-69 flexed his burned fingers. Slowly. Painfully.
"I still have one left." Lumina hit him again with her tail. Much harder this time. Stop spending your body like it is disposable. Z-69 looked at her. Then, without a word, used his uninjured hand to gently rub the top of her head. The gesture was so casual, so absurdly calm after what had just happened, that Lumina went silent in offended confusion. Ten still held his wrist.
"You protected me."
"Yes."
"Why?" Z-69 looked at him. The answer should have been simple. Useful asset. Premonition source. Survival advantage. But none of those words came first. Instead, he said, "You are my teammate." Ten went still. The laser maze hissed behind them. Lumina's eyes softened for one second before she quickly looked away. Z-69 pushed open the exit door. Darkness waited beyond. Not empty darkness. Occupied darkness. The next room was cold, metallic, and humming. A faint vibration ran through the floor. Then came the sounds.
Clack. Whirr. A thin mechanical flutter, like steel wings adjusting in the dark. Ten clutched Z-69's sleeve again. His voice came barely above a whisper.
"That is…?" Z-69 tightened his grip on the Heaven-Sundering Short Blade. The purple glow along its edge flickered dangerously low.
"Combat drones." Behind them, the door slammed shut. The killing light vanished. Darkness swallowed them whole. And in that darkness, hundreds of red optics opened.
