The cold arrived first, sharp as unpolished iron pressed against his temple.
Back in his cramped Akihabara workshop at four in the morning, cold meant something manageable. Rigged exhaust hoods whining to vent lead-rosin soldering fumes, and ice-water loops chilling stripped console motherboards wired into twenty-four-channel logic analyzers. Here, cold was greasy, sulfur-thick, and reeking of crushed shale, wet coal dust, and stale ditch-water pooling against the shattered curve of his collarbone.
Lin Tao opened his left eye.
The sight didn’t make sense to any rational human mind. Above his nose, three hundred pounds of blue-gray slate hung wedged between two rotting pine wooden props. The rock was not smooth or weathered. It was a violent, jagged wedge of hard pressure-forged rock that had detached from the ceiling of the drift, possessing enough crushing weight to crush a human skull into wet porridge in three tenths of a second.
Yet the rock was not falling.
It hung three inches above his breastbone. It trembled with a tiny, high-hum shudder that blurred its outer edges against the dark underground air.
A pale box-shaped prompt flickered in the lower-left side of his eye, cast in low-contrast glowing green:
Lin Tao didn’t scream. He didn’t cry out for mercy.
In seven years of working as a Site Reliability Engineer on distributed high-high-speed payment engines. It screamed had never once resolved a database deadlock or restored an unindexed transaction table. Panic was merely a waste of body energy.
He took a slow, shallow breath through his teeth.
The air tasted foul—a thick mid-air of crushed limestone powder, stale sweat, rancid mutton fat, and the copper-tang of fresh blood pooling behind his tongue. His physical meat was in total disrepair. His left collar bone was snapped fully through. Every tiny shift of his ribs caused the jagged, hardened bone ends to grind together like broken quartz inside his flesh.
This is meat, his mind cataloged with icy, test care. A seventeen-year-old carbon vessel. Half-starved, dehydrated, and severely traumatized.
He forced his vision to concentrate on the trembling rock above him.
To an ordinary mortal miner or an arrogant fighter floating on a flying sword, this mountain was a manifestation of the eternal, mystical Heavenly Dao. They believed the stone held together through old family harmony, earth-vein Qi. The divine will of the Jade Emperor.
Lin Tao’s left eye saw the truth. The universe was running on rotten, unmaintained Precursor firmware.
The Sovereign Engine didn’t calculate the physical solidity of this mountain continuously. Nonstop physics math across a world-size surface was computationally impossible. Instead, the ancient system took a shortcut—it sampled reality at twenty-four snapshots a second.
Every a split second, the engine queried the shape of Sector 04, checked that the slate was solid matter. Then it wrote the crash boundary to reality. But between those refresh ticks lay a tiny void—a split-second processing gap where the rock was merely an unrendered exact concept awaiting execution.
A sub-tick crash seam.
Lin Tao dragged his right arm through the frozen mud.
His fingers were raw, the fingernails split and caked with black slurry, but his movement nerves still fired. They brushed against a rusted iron quarry nail, four inches long and cold as ice, discarded by the timber crew during yesterday’s shift.
He gripped the iron nail tightly against his palm.
He didn’t pray to the heavens. He didn’t beg the mountain for mercy.
He fixed his gaze on the glowing green counter ticking in his eye. The refresh pulse was rhythmic, matching the deep, low, deep hum of the mountain’s bedrock. Twenty-one. Twenty-two. Twenty-three. Twenty-four.
Drop.
During the split-second gap between the twenty-third and twenty-fourth tick, Lin Tao shoved his right shoulder into the mud and rolled his torso to the left.
The slate slab didn’t tear his skin. For the tiny fraction of a heartbeat, his living organic shoulder passed directly through the gray stone as if it were nothing more than a puff of cold steam.
Then the twenty-fourth tick carried out.
The slate slab slammed down into the bedrock floor with an ear-splitting, bone-jarring crash.
The three-hundred-pound rock crushed the stone flag where his head had rested half a second earlier. It sent a shower of sharp slate chips blasting across his back like shrapnel.
The universe didn’t appreciate being cheated. Lin Tao had forced his physical meat through an unmapped crash state. Because of that, the trapped heat buildup had nowhere to fade.
The waste energy vented directly through his neck spine.
A blinding flare of white heat tore through his neck. Lin Tao arched in the mud. His jaw locked so wildly that his back teeth clicked, blood spraying from his nostrils as his inner body heat spiked to thirty-nine degrees in a single second. The back-EMF of an illegal physics transaction scorched through his shoulder nerve bundle. That left his left arm twitching wildly in the slurry.
He lay in the black water, gasping for air that felt like hot knives in his throat.
I’m alive, he thought. His heart hammered against his cracked ribs at one hundred and forty beats per minute. The process is still running.
He raised his right hand, which was trembling with violent tremors. He brought the four-inch iron land-mapper nail to his face.
He needed an anchor. Reality began to clip and desynchronize. Then, the human brain was prone to losing touch with what is real. Believing the world was merely a dream or a sandbox test model. If he lost his grip on physical permanence, the next crash error would sever his main spine nerve.
Without hesitating, Lin Tao pressed the dull, cold point of the iron nail against the thick callus at the base of his left thumb.
He drove the iron a tiny fraction of an inch deep.
Pain—sharp, clean, hot, and unequivocally living—surged through his nerves throughout his body. Dark, thick dark blood welled around the iron shaft, dripping down his wrist into the mud.
Branch checked, his mind whispered through the pain. Physical meatspace. Main thread. No rollback.
Above the mouth of the drift, a sharp, wet sound tore through the sulfur-laden air.
It was the crack of braided copper wire slicing through cowhide.
“Get up, you ditch-born vermin!” a coarse voice roared from the upper overhead frame. “Morning tally is called! Any cart not on the rails before the third gong loses three days of porridge!”
Overseer Hu had arrived at the pit.
Lin Tao pulled the nail from his thumb, smeared the blood across his ragged hemp tunic, and began to crawl out of the rubble toward the light.