The confidential courier arrived not by the northern road, but through the underground drainage water chutes beneath the melted rock waste terraces.
He was a junior scribe from the Disciplinary Bureau, his gray robes drenched in stone slurry. His face was pale as lard as he crawled out of the Precursor storm grate behind the stone hut of Pit Seven. He carried a small copper metal tube wrapped in oiled silk. He was stamped with Disciplinary Elder Song’s private owl-crest.
Tie Shan hauled the trembling scribe out of the ditch by his collar. He set him on his feet on the dry slate terrace.
The scribe didn’t speak. He thrust the copper metal tube into Lin Tao’s hands, turned. Then he scrambled back into the drainage pipe, scared of being spotted by the outer sect patrols.
Lin Tao unscrewed the copper cap, extracting a narrow strip of dark purple silk covered in Elder Song’s sharp, wild calligraphy:
“To Inspector Lin: Senior Deacon Qian and Pill Master Lu have mobilized their factions in the Grand Trial. They have discovered that your waste scum-refining operations in Pit Seven threaten their thirty-year monopoly on outer sect medicine. They can’t bribe Inspector Han, so they plan to create an unpreventable heavy-duty disaster. Overseer Meng has been promised full pardon and three thousand silver bits if he triggers a total breach of the Central Smelting Fire before midday tomorrow. They intend to burn up the volcano bowl, destroy your ledgers, and claim the disaster was caused by your reckless tampering with Precursor machinery. Prepare for impact.”
Lin Tao read the silk strip once, memorizing the characters, before touching the fabric to the flame of his oil lamp.
The silk burned into gray ash in a split second, the tiny red embers drifting down between the cracks of the slate flat stone slabs.
“What did the old rat say?” Tie Shan rumbled, stepping beside Lin Tao with his twelve-pound iron pry-bar resting across his broad shoulder.
“Song says our enemies have run out of office maneuvers,” Lin Tao replied quietly. His eyes turned toward the towering dark shape of the Central Smelting Pavilion. “They’re going to use the fire to erase the books.”
Lin Tao retrieved the ancient Precursor building scroll from his slate desk, unrolling the schematics of the Thermal Reclamation Engine Model 4-C under the green light of his left eye.
The situation was far worse than Elder Song realized.
The fire was not merely being overloaded. Its manual cooling valves had been fully welded shut by Meng’s guards. For three days, Meng had been stoking the lower hearths with sulfur coal and tightly packed demon-beast oil to force the core heat toward the twelve-hundred-degree limit.
If the fire breached, sixty thousand tons of white-hot molten bronze and sulfur vapor would engulf the entire valley, choking three hundred innocent laborers in their sleep.
Lin Tao walked to the edge of the stone terrace, his cold, observant eyes scanning the layout of the volcano bowl.
Across the basin, forty coolies were carrying clean water buckets, while twelve teams were stacking refined bronze metal bars onto wooden pallets. These men had trusted him. They had traded their generational slave collars for honest craft and clean food. If the fire blew up, their bodies would be dissolved into blackened ash before they could take ten paces toward the cliffs.
“Tie Shan,” Lin Tao said softly.
“Here,” the giant rumbled, his dark eyes steady as stone.
“Tell Old Wu to move all non-essential workers to the high northern ridge,” Lin Tao ordered. “Take the silver chests, the Precursor scrolls, and the reserve rations. If the sky turns purple, don’t look back.”
Tie Shan frowned slightly, his thick jaw tightening. “And you?”
“I’m going to inspect Overseer Meng’s pressure gauges,” Lin Tao replied quietly, his fingers resting against the leather sheath of his metal pen. “A machine doesn’t explode if you know where to vent the load.”
Before Tie Shan could speak, a junior coolie came sprinting down the trail into Pit Seven, his face covered in soot. He gasped for breath.
“Inspector Lin!” the boy wheezed, falling to his knees on the flat stone slabs. “Overseer Meng... He sent an urgent message from the Central Pavilion! He says the main pressure governor on the smelting core has seized! He says the core is about to rupture. He begs you to bring your tools to inspect the intake pipe hub right away!”
Tie Shan gripped his twelve-pound iron bar, his jaw tightening into iron. “A trap.”
“Of course it’s a trap,” Lin Tao replied softly, his voice devoid of fear, his cold eyes glowing with emerald clarity. “He wants us inside the chamber before he drops the gate.”
Lin Tao adjusted the four-inch cold-drawn steel land-mapper metal pen at his hip, checking the tightness of his leather belt.
“Gather the tools, Tie Shan,” Lin Tao said, stepping onto the gravel trail. “Let’s go inspect the overseer’s dying hearth.”
Around the stone hut of Pit Seven, the thirty-nine scavengers moved with the quiet, desperate discipline of men who had lived their entire lives under the shadow of sudden death. Under Old Wu’s direction, the workers carried the heavy wicker chests of silver metal bars, the bamboo tally scrolls, and their rations up the steep switchback trail toward the safety of the northern cliffs.
Old Wu paused at the edge of the terrace. He looked down at Lin Tao with tears streaming through the soot on his cheeks.
“Inspector Lin...” the old man rasped, his voice trembling with fierce emotion. “Don’t go into that iron fire. Meng is a cornered madman. Come with us to the high ridge! Let the fire burn!”
“If the fire breaches, Old Wu, the fire will reach the ridge in sixty seconds,” Lin Tao replied quietly, his hand resting on the smooth leather sheath of his metal pen. “The volcano bowl has only one air-flow chimney. If we don’t control the exhaust, no one leaves this valley alive. Keep climbing. Don’t stop until you reach the pine line.”
Tie Shan picked up his twelve-pound iron pry-bar, planting his heavy boots on the gravel beside Lin Tao. The giant didn’t speak. His broad, bronze-skinned torso was bare, glistening under the purple smog, his dark eyes fixed on the red-hot ziggurat with rock-steady resolve.
Together, the two clerks walked down the dark trail into the heart of the smoke.