The heat hit first.
It didn’t feel like sunlight or a summer afternoon. It felt like sticking your head into an open oven full of burning pig fat and sulfur coal.
Hot grit coated the back of Lin Ke’s throat. When he coughed, something wet and sharp scraped against his ribs, like broken glass rattling inside a tin pail.
The floor beneath his cheek was dressed dark rock, slick with grease and powdered lime. Just above his left ear, the air made a high, wet whistle. The sound of braided copper wire slicing through soot.
Overseer Fang was swinging his whip.
* * *
Three seconds ago, Colin Shaw had been thirty-eight years old. He sat in an air-conditioned server farm in Dublin, nursing cold gas-station coffee while four extra database clusters burned down around his ears. Seventeen years of three-in-the-morning outages, and this was somehow worse.
There was no end-post here. No pager. Only a starved seventeen-year-old body, two wrists raw from zinc blisters, and four pounds of leaden melted rock waste grinding inside his knee joints like ungreased bearings.
The copper whip was six feet above his skull and dropping fast.
If it struck his temple, the copper braid would peel his scalp to the bone. At that speed, the blow would cave his skull in and kill him before his face even hit the floor.
A grey line flickered behind his eyes.
It wasn’t a holy discovery. It didn’t carry the scent of sandalwood, sky bells, or the voice of an ancient grandfather offering immortality. It was a thin, box-shaped prompt, pale as bone against the dark:
Branch, his mind snapped, purely by reflex. Give me a test branch.
The air seized.
The fire roar died away into total silence. The glowing embers frozen in mid-air looked like flakes of red rust suspended in water. Overseer Fang’s yellowed teeth, bared in a snarl beneath a greasy mustache, hung stationary above him.
Lin Ke stood up.
Or rather, something that looked like him stood up in the quiet space of his own skull. His physical meat remained pinned to the cold stone floor, muscles trembling under the crushing weight of hardened bone marrow. The thing standing was only an outline, a mental model running through the numbers.
In the test model, the phantom stayed where it was.
The frozen copper whip resumed its flight path in Lin Ke’s thoughts. The braided wire slammed into the phantom’s left temple with a wet crack. Bone cracked inward. Brain matter boiled.
A spike of phantom agony tore through Lin Ke’s lower brain. Not physical tissue damage, but the raw psychological recoil of an expected death.
Lin Ke gasped on the stone floor, his real fingernails clawing into the limestone powder. Bile surged into his mouth. His soul felt bruised, as though a heavy iron boot had stepped directly on his thoughts.
Too slow. Don’t freeze.
He spun up another instance inside his thoughts.
In the second test model, the phantom scrambled forward, lunging between Fang’s cloth-wrapped boots to tackle the overseer’s shins.
The copper wire adjusted. Fang had done this for twenty years. His wrist flicked downward with casual cruelty. The lash caught the phantom across the throat, ripping through the windpipe and main neck blood vessel.
Eighteen seconds of choking blackness before the test model collapsed.
Lin Ke’s stomach heaved again. The phantom choke left his real lungs hitching for air, even though the physical whip had not yet crossed three inches of empty air.
Phantom Death Syndrome, he noted coldly through the nausea. The brain doesn’t know the corpse was only a projection. Two more of those and my heart stops on its own.
One more try. Only one.
This time, the phantom didn’t run. It didn’t try to stand on knees filled with iron grit.
Instead, the phantom kept its chest flat against the dark rock. It dragged its right hip two inches laterally, rotating the left shoulder fifteen degrees counter-clockwise along the floor’s natural drainage slope. It dropped its chin into the hollow of its collarbone and let gravity pull its skull into the depression between two stone flags.
The whip dropped.
The braided copper tip hissed past the phantom’s ear, clearing the earlobe by less than half an inch. It struck the dark rock floor directly where his temple had rested, biting half an inch deep into the stone and exploding into a shower of white chips.
Recovery window: 0.3 seconds.
Lin Ke discarded the mental thread.
* * *
Back in meatspace, time slammed back into gear with the roar of a jet engine.
The dull bellow of Fire No. 9 crashed over his ears. Heat blasted his eyelids.
Lin Ke didn’t hesitate. He didn’t second-guess the test model.
With every ounce of leverage his starved frame possessed, he jammed his left elbow into the slick flat stone slabs, dragged his right hip two inches right. Then he tucked his chin hard against his chest bone.
CRACK.
The sound was like an iron mallet striking an anvil.
The braided copper whip smashed into the dark rock right beside his left cheek. A spray of sharp rock dust stung Lin Ke’s temple. He drew tiny pinpricks of blood, but the heavy wire itself only bit stone.
The dark rock flag cracked from corner to corner.
Overseer Fang stumbled half a step forward, thrown off balance by the missing pushback. He had put eighty pounds of downward shoulder torque into what should have been a soft skull. Hitting empty rock jarred the bones of his forearm, sending a dull ache up his elbow.
Fang caught himself against the edge of a coal wheelbarrow, breathing hard, the grease on his face shining in the fire glare.
“Slippery little dog,” Fang growled, his voice thick with thick spit. “You learned how to flinch.”
Lin Ke didn’t answer.
He stayed on his stomach, breathing through his nose in measured, shallow sips to keep the sulfur smoke from burning his bronchi. With his right hand, hidden beneath the hem of his ragged hemp tunic, he reached into his waistband.
His fingers found a four-inch iron metal pen. A discarded scrap from the melted rock waste bins, its tip ground sharp against the floor stones over three months of miserable, anonymous captivity.
He pressed the needle point into the meat of his left thumb.
He pushed until the skin gave way. A sharp, clean sting cut through the fog in his skull.
A drop of dark, sluggish blood welled over the iron tip.
“Branch checked,” he murmured under his breath, so low the words were swallowed by the fire draft. “Main.”
It was the anchor. If he didn’t bleed in the real world after dying twice in his head, his mind would lose the boundary between the sandbox and the flesh. The pain was small, ugly, and real. It meant he was still in production.
Fang stood over him, winding the copper whip back around his thick forearm. His piggish eyes narrowed, flicking from the shattered dark rock flag to the back of the boy’s neck.
Slaves didn’t dodge like that. Slaves cowered, curled into balls, or took the lash across their shoulders until they stopped twitching. This boy had moved like a hinge—economical, precise, and fully empty of panic.
“Get up, Seven,” Fang spat, kicking the boy’s ribs with the toe of his boot. Not hard enough to break bone, but hard enough to bruise. “Crucible Nine is swelling. The pressure valve on the upper stack is jammed with carbon crust, and Elder Wu is due for check at dawn.”
Lin Ke pushed himself up from the dark rock floor.
His knees protested with a dry, grinding click that made his teeth ache. The Azure Cloud Sect’s forced Iron Marrow Manual—the entry-level scripture forced upon every smelting laborer—was slowly turning to stone his bones, replacing spongy marrow with brittle iron-stone-glass crystals.
Three months of forced practice had made him strong enough to haul coal, but in another six weeks, the stone buildup would reach his main thigh blood vessels and stop his blood cold.
A disposable workforce for a disposable ward.
“The stack valve is red-hot,” Lin Ke said. His voice was cracked from dehydration, but flat. Level. “If the draft cools the crucible below sixteen hundred degrees, the spirit iron will freeze in the belly.”
Fang froze, his whip hand pausing mid-coil.
He stared at the starved boy in front of him. Slaves spoke of fire spirits, angry fire gods, or bad luck. They didn’t speak of heat levels. They didn’t speak of draft.
“What did you say?” Fang demanded, taking a step closer.
“I said the draft is wrong,” Lin Ke replied quietly. He kept his eyes on the soot-stained hem of Fang’s coat. “The left bellows crew is pumping out of phase with the right. They’re creating rough churning at the mouth instead of smooth-flowing flow into the core. That’s why your pressure is climbing.”
Fang’s brow furrowed. Half the words made no sense to him, but he had worked Fire No. 9 for twelve years. He knew the shuddering shaking humming through the flat stone slabs right now was the exact rhythm the iron vessel made ten minutes before a seam blew out.
If Fire No. 9 blew its belly, sixty slaves would turn into grease on the walls.
More importantly, Elder Wu would dock Fang’s spirit stones for the damage.
“You talk too much for a crippled dog,” Fang muttered, though he didn’t raise the whip again. He jerked his chin toward the iron ladder bolted to the fire wall. “Get up to the staging platform. Clear the clinker from the upper chimney pipe. If the pressure doesn’t drop before the fifth watch, I’ll throw you into the ladle myself.”
“Understood,” Lin Ke said.
He turned toward the iron ladder, every step sending a hot pulse of friction through his hardened hips.
Inside his vision, the thin grey status box hovered at the edge of his senses, dark and patient:
Seventeen years of disaster recovery had taught him one deepest truth. When a public works is rotten to the root, you don’t try to fix everything at once. You find the single fault that is about to kill you in the next ten minutes, you patch it with whatever scrap metal you have on hand, and you buy yourself enough time to plan the refactor.
He climbed the first rung of the iron ladder. The metal was almost hot enough to sear his palms, but he gripped it anyway.
Zero downtime. Exploit confirmed.