The laugh came first.

  It rattled through the chamber like a choir of broken throats, every note layered wrong, every cadence snagging in his ears like a stubborn ball of wax. The sound shook Ethan before he even moved.

  CelestOS lay crumpled on the ground, her optics a dim red and her frame sparking faintly as smoke curled from its seams.

  Harold clung close, his lamp cracked from the earlier scuffle, throwing crooked haloes across the resin walls. His turret clicked in anxious ticks, sights set on Dr. Miro. The little drone’s growl was low and uncertain, as if he knew what was coming would be too much for either of them.

  Around them, the hall pulsed. Red veins throbbed in waves across the walls, synced to the omnipresent hum. The air was thick and metallic. Copper steam clung to Ethan’s tongue, burning his lungs. Every breath felt stolen.

  Miro straightened. Resin creaked across his towering frame as he rose to his full height, furnace red eyes burning down on Ethan. He tapped the Veslayan Ore against his chest and the room dimmed, as if the chamber itself paused to listen.

  “Do you know what they kept from us, little intruder?” His voice cracked high, then dipped guttural, a fractured choir wrapped around the cadence of a single man. “The Singularity Code. Buried in their files, whispered in their laboratories. Celestitech promised it would make men into gods.”

  The Ore’s glow flared green, its facets cutting through the red like glass knives.

  “And I cracked it, though not with numbers or equations.” Miro’s jaw ground open too wide, his teeth calcified to stone ridges. “But with marrow. With resin. With the very choir of existence itself. Entropy and syntropy combined together singing the secret cadence of life.”

  What the fuck is this lunatic rambling on about. What does any of this shit matter if that was the end result. Ethan tightened his grip on the axe. He shuddered as his knuckles whitened around the haft, his breath shallow in the copper heat. His gaze flicked to CelestOS, hoping for a flicker of life, a spark, anything. But the angry red glow of the resin belied any sense of life.

  Miro commanded attention as his cannon rose. Resin veins brightened in time with its movement, the muzzle smoldering like an embers about to burst anew.

  “Behold,” Miro crooned, his grin jagged and wrong, “the power of Veslaya… in the palm of my hand.”

  Ethan’s instincts screamed. He dove, barely ahead of the red beam that carved the hall in two. Resin shrieked as it melted, then vitrified black in an instant, sealing the path once more. The floor glistened like glass, its lanes narrowing, every miss turning the chamber further and further into a death trap.

  Heat washed across him and seared his throat raw. Harold darted against his shin, lamp jittering as the two of them pressed into the ribs for cover.

  Miro paced, his vertebrae cracking as loud as bones broken fresh. He raised his arms wide, cannon held loose, the Ore gleaming cold in his chest.

  The Ore pulsed, a faint green light pushing back the red. For half a heartbeat, the veins nearby dimmed. Ethan filed the detail away, his pulse hammering so loud it nearly drowned the hum.

  Harold whined low, his turret motor spinning but holding fire, waiting.

  The silence pressed harder than the heat. CelestOS was gone. Reyes was dead; Maria missing; it’s like every inch left him further and further behind.

  The images clawed at him, heavy enough to drown: Varma's crushed body, Patel's betrayal, Reyes transformed, and Maria well, he didn’t want to picture her dead. If Harold fell, if the lamp died, nothing would be left but the dark.

  He shoved the panic down. Focus on the room. Focus on the Ore.

  Miro swung the cannon lazily, as if he already knew Ethan had nowhere left to run. His voice rose in triumph.

  “Do you understand, intruder? With the Ore in my hand, and the resin in my veins, I am not a man. I am entropy perfected. I am syntropy divided. The AI is mine. Celestitech will kneel, if any of them are left to kneel.”

  His laugh rattled the chamber again. The red veins flared brighter, pulsing faster, harder, syncing to Ethan’s racing pulse until he could not tell if the sound came from the walls or from his own blood.

  The cannon mouth ignited.

  He gritted his teeth, breath burning in his chest, as Harold growled beside him and the chamber prepared to burn again.

  Miro lifted the cannon, and the veins across his chest lit brighter, feeding of his essence, pumping molten red into the weapon. The charge sequence was obvious, almost too obvious, as if he wanted Ethan to see what was coming.

  Ethan hurled himself aside as the muzzle flared once more.

  His skin prickled and his throat was scorched raw. The world smelled of iron and smoke.

  “Entropy is mercy,” Miro crooned. “The culling of the weak, to empower the strong.

  Ethan forced himself upright, his boots slipping on the rotten trench forming from Dr. Miros wild blasts.. His heart thundered. That blast had not just tried to kill him; it had remade the battlefield. He was quickly running out of room to maneuver.

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  A wet crack split the air. A wall pore ruptured, spilling resin down the face of one of the new ridges. It pooled, shuddered, then rose on too many limbs.

  The first crawler pulled free, a spindly amalgam of resin and insect, its mandibles clacking. Two more followed, their bodies congealed from sludge, skittering across the black glass floor.

  Ethan swore under his breath.

  Harold’s turret spat bursts into the dark. The first crawler cracked apart in a spray of resin shards. The second folded under another volley, collapsing into twitching limbs. The third dragged itself forward on half a body, jaws clacking, the lamp glow painting it in fractured halos.

  “Shit.” Ethan lunged, smashing the axe haft across its side. The blow knocked it sideways, sliding it into Harold’s cone of fire. The turret clicked, then hammered, ripping the hybrid to splinters.

  The recoil knocked Harold back half a step. His lamp dimmed, flickered, then steadied with a shudder. The little drone whined static.

  Ethan’s stomach turned cold. Every shot took something out of Harold. Every wave drained him of his limited battery , shaking his lamp and overheating his turret. And if Harold failed here, if his light went dark, Ethan would be alone again.

  He saw Reyes's heartbeat slowing in his hands, Varma's crushed chest, Patel walking away and stealing the last pod, and Maria swallowed by silence. The images surged in like an undertow, each one pulling harder.

  He clenched his jaw and forced them down. Focus. Survive.

  The cannon vented heat with a hiss. Miro adjusted his posture, resin armor groaning, the weapon dropping low to recharge.

  Ethan saw it then: the rhythm.

  A pattern pulsed through the chamber. The hum would build for three beats, the cannon's vent would flare, and the muzzle would flash red. Then came the blast.

  Miro’s furnace eyes locked on him, his preacher’s cadence rattling through his jagged throat.

  “They rot, they scream, but their marrow still sings. And now you’ll add your voice.”

  The cannon rotated toward him again, deliberately slower this time, herding him. Each rib and glass shelf shifted the walls closer, guiding him into a cul-de-sac slick with resin.

  He understood the weapon now. It was not just a gun; it was a prison builder, a tool for reshaping men into corners and then into corpses.

  If he did not adapt, if he could not sync with the pulse, he would not just be killed. He would be erased, sealed into the chamber like the others.

  The hum built again, one-two-three. As the muzzle flared, Ethan moved.

  The cannon roared again.

  Ethan juked left on impulse, throwing himself flat as the beam scythed past by inches. The blast sheared into the ceiling, popping a swollen bladder overhead. The organ burst like a boil.

  A wave of hot slurry rained down, hissing where it struck the glass. Caustic mist filled the air in choking sheets that burned his exposed skin. Steam scalded his arms, heat clinging in wet ropes that prickled down his back. The hall dissolved into fog, red veins pulsing faintly behind the haze. His throat seized, every breath a mix of copper and smoke.

  Harold’s lamp scattered light in jagged wedges, shadows jittering across the mist.

  From the resin trench, there was movement.

  Two fresh crawlers slithered free, mandibles clacking, their limbs scrabbling across softened resin. The slurry slowed them, their legs skidding wide, their bodies sagging under the weight of the fresh heat.

  “Come on.” Ethan braced as Harold’s turret stuttered, then spat bursts. One crawler shattered into pieces. The other staggered sideways and collapsed under the follow-up volley. Resin ichor hissed as it met cooling glass.

  Harold yelped static from the recoil, his lamp shaking. Ethan grabbed him by a leg and dragged them both across the glass, his boots squealing like nails across slate.

  Miro’s laugh cut through the fog. His voice doubled and trebled, bouncing off the resin, a whole choir speaking with one throat.

  “Do you feel it? The rhythm. The Code. Celestitech thought numbers mattered. But it was always song, always pulse. Always resin. But they made one fatal flaw. Relie too much on one thing, and the world comes crumbling.”

  The sound crawled into Ethan’s skull. He clenched his teeth hard, forcing it back, refusing to let it stick.

  The mist began to condense, its filaments drifting down in sticky threads. The cover would not last, because the room was already healing itself.

  The cannon hummed again, even slower this time, but steadier and prolonged. The beam swept through the fog, igniting pockets into white explosions. The chamber strobed red and white, searing afterimages across Ethan’s vision.

  Steam thinned, leaving the veins glowing brighter than before. His arms were scorched and his lungs were raw, but the rhythm was there, solid and exploitable.

  “You cannot escape the cadence,” Miro boomed, stepping forward through the mist. The cannon smoldered in his hand, the Ore burning green against his chest. “It is written into you already. Now come join the choir!”i

  Ethan skidded onto a rib-bridge forming out of the destroyed walls of the ‘lab ahead, Harold scraping alongside him, both of them gasping in the copper air. He braced on the axe, his body shaking, his eyes on the pulsing veins.

  The last cannon strike ricocheted wide, fusing two massive rib walls into a single black arch. The resin glowed hot, the seam still bleeding heat, stretching across the chamber like a cathedral’s vertebra.

  Ethan skidded to a halt at its base. The bridge curved high over the molten trenches below, slick and glass-smooth. One slip, one misstep, and he would slide screaming into the veins that pulsed red beneath. The heat radiating off it already stung through his torn suit.

  Miro fired again, not at him but near. The beam liquefied more resin along the walls, carving away the last of Ethan’s lateral escape. Ethan had no choice. No where to run. He had to start fighting back.

  “Every rib, every vein, every voice bends to me,” the monster preached, his fractured choir rattling the arch. “You’re nothing but marrow waiting to be consumed.”

  Dr. Miro sounded like a broken record, and desperately needed some strategy. So far in the entire fight he’d just been destroying the room like a toddler given unsupervised freedom.

  He broke into a sprint, his boots slipping on the steep curvature. Each step squealed on the glass. Harold clawed beside him, lamp beam jittering, his little frame sliding on every stride.

  The hall shivered.

  The hum thrummed up through Ethan’s legs, rattling his teeth. One-two-three, followed by the faintest pause, like a breath. He moved on that lull without thinking, his legs churning, his grip white-knuckled on the axe. One-two-three, dash. Breath. Dash again. He was barely keeping ahead of the blasts. The oozing battlefield had very few stable spots left, now a melted support beam of blood and bones was the only safe spot left. Ethan climbed.

  Halfway up the arch, resin crawlers leapt.

  Two of them, a heat-glow bleeding from their bodies, their claws scrabbling for purchase on the slick span. One lunged at Harold. The lamp beam snapped wild, blinding Ethan mid-step. The turret roared, shredding the crawler in a spray of resin shards, but the recoil nearly pitched the drone into the abyss.

  “Hold on!” Ethan snarled, his boot lashing out. His heel caught the second crawler square, sending it tumbling off the arch. It screeched until it cracked apart on a molten vein below, the sound swallowed by the hum.

  The arch shook again. Ethan’s foot skidded across a streak of melted resin, his body tilting sideways. He slammed the axe down, its haft grinding across the span, sparks flaring too loud in the pulse silence. For a heartbeat he dangled half-off, the ribs thrumming under him, molten light searing up from the depths. One false move and he was dead.

  Miro’s furnace eyes tracked them from below. He leveled the cannon not at Ethan, but at the bridge itself.

  “Run faster,” he crooned, his choir echoing with him. “Entropy waits for no man.”

  The muzzle smoldered, the veins along his arm pulsing bright.