← The Engineer Who Built Heaven Chapter 6 / 20
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Chapter 6: Chapter 6

~0.0k words · 2026-06-22

The world went white, and Liu Yang felt his body unmake.

It wasn't pain—it was absence. The sensation of being erased from the inside out, his bones dissolving into light, his thoughts fraying at the edges like rope under tension. He'd felt this once before. Concrete rushing up to meet him, the snap of a cable, the knowledge that he was about to die in a way no engineer could calculate away.

But the white faded.

He was on his knees. Stone beneath him, cracked and ancient. The Celestial Inspector stood before him, her hand lowered, her face unreadable. Behind her, the forge stood silent, the immortals frozen in the doorway like statues carved from shock.

"You're still here," Liu Yang said. His voice came out raw. "Why am I still here?"

The Inspector didn't answer. She turned and walked toward the ruined furnace, her armored boots crunching on the cooled slag. She stopped at the split in the wall, ran a gauntleted finger along the fracture line, and examined the residue with the clinical precision of someone who had seen a thousand catastrophes.

"Interesting," she said. "The failure pattern is consistent with thermal oscillation fatigue, not deliberate disruption. The stress fractures radiate outward from a single point of weakness—here, where the original support beam was removed. A proper sabotage would have targeted the qi-containment array or the primary ignition chamber."

Liu Yang blinked. "You... you can see that?"

"I can see everything." She turned to face him. "I've watched you for three days, Liu Yang. From the moment you arrived at the forge, I've monitored your movements, your calculations, your interactions with the other craftsmen. You slept four hours total. You ate nothing. You corrected Feng Bo's technique eleven times, and each time you were right."

Feng Bo stepped forward, his face a mask of confusion. "Inspector—what is the meaning of this? You charged him with sabotage."

"The charge was a test." She said it flatly, without apology. "The Jade Emperor required certainty. A mortal with your capabilities could be a tremendous asset—or a catastrophic liability. We needed to know which."

"So you destroyed the furnace?" Liu Yang's hands clenched. "You let it rupture to test me?"

"I let it rupture to observe you." The Inspector's eyes were cold, pitiless. "Your reaction told us everything. You warned Feng Bo first. You ran toward the danger before you ran from it. When the furnace failed, your first instinct was not self-preservation—it was diagnosis. You were already calculating the cause before the slag had cooled."

Liu Yang stood slowly, his legs unsteady. "That's your test? Sabotage my work, destroy a thousand years of tradition, and see if I panic?"

"Tradition is replaceable. People are not." The Inspector reached into her armor and withdrew a scroll, sealed with the Jade Emperor's mark. "Your punishment is rescinded. Your position is elevated."

She held out the scroll. Liu Yang didn't take it.

"I don't understand."

"The Grand Furnace was already failing." Feng Bo's voice was quiet, heavy. "The heartstone ingots we produced these past three years—they've been below standard. Cracking in storage. Losing their qi-retention capacity. The furnace was dying long before you arrived, mortal. We just didn't want to admit it."

Liu Yang stared at him. "You knew? You knew it was failing and you let me take the blame?"

"You were the variable." The Inspector's voice was unapologetic. "If you were the cause, we needed to know. If you weren't, we needed to see how you handled failure. The Jade Emperor does not trust easily, Liu Yang. Especially not mortals."

The scroll hung in the air between them. Liu Yang looked at it—at the seal that could grant him power or destroy him on a whim. In his old life, he'd dealt with corrupt contractors, negligent inspectors, a system that valued speed over safety. This was the same thing, just dressed in celestial robes.

"I want something in return."

The Inspector's eyebrow rose. "You're in no position to bargain."

"I'm not bargaining. I'm negotiating." Liu Yang met her gaze. "The furnace is destroyed. Without it, the Heavenly Domain loses its primary source of heartstone ingots. The qi pipelines are already leaking. The cloud bridges are cracking. Your civilization is running on a failing infrastructure, and your best craftsmen have been applying bandages to wounds that need surgery."

He stepped forward, pointing at the wreckage.

"That furnace failed because it was designed wrong. Not my math—the original design. The support beam placement. The thermal venting system. The qi-containment array. Your ancestors built it twelve thousand years ago with no understanding of material science, and it's been limping along ever since, held together by tradition and stubbornness."

Feng Bo bristled. "You dare—"

"I dare because I'm right." Liu Yang turned to face him. "You're a brilliant smith, Feng Bo. You've spent centuries perfecting your craft. But you're working with tools that were outdated before your grandfather's grandfather was born. I can build you a better furnace. I can build you a system that produces three times the output at half the cost."

The Inspector studied him for a long moment. "And what do you want in return?"

"Authority." Liu Yang's voice was steady. "Real authority, not just a title. I want the power to inspect every structure in the Heavenly Domain, to identify every flaw, and to fix them. I want access to your archives, your records, your blueprints. I want to see the bones of this place."

The forge was silent. The immortals stared at him, some with shock, some with anger. Liu Yang felt their gazes like physical weight—twelve thousand years of tradition telling him he was an upstart, an outsider, a mortal who didn't know his place.

The Inspector looked at him for a long moment. Then she spoke.

"The Jade Emperor anticipated this request."

Liu Yang blinked. "He did?"

"He said you would ask for exactly this. He also said you would first demand to know the true state of the Heavenly Domain—the full scope of the damage, not just the pieces you've seen." She paused. "The emperor values honesty, Liu Yang. He's had eight hundred years of bureaucrats lying to him about the state of his realm. He wants someone who will tell him the truth, even when it's inconvenient."

She pulled another scroll from her armor. "This is a writ of inspection. It grants you access to every structure in the Heavenly Domain—bridges, palaces, pipelines, armories. You may examine anything, question anyone, and request any records. The only exceptions are the private chambers of the Jade Emperor and the Celestial Vault."

Liu Yang took the scroll. It felt warm in his hands, humming with contained power.

"However," the Inspector continued, "there's a condition. The emperor wants proof of your capabilities before he grants you full authority. You have one month to identify the most critical structural failure in the Heavenly Domain and present a complete repair plan. If your assessment is sound, you'll be appointed Chief Structural Engineer of the Heavenly Domain. If it isn't—"

"Dissolution." Liu Yang finished the sentence. "I know how this works."

The Inspector nodded. "The clock starts now."

She turned and walked toward the doors, her armor gleaming in the dim light of the ruined forge. She paused at the threshold.

"One more thing, Liu Yang. The emperor has a personal request."

"What?"

"The Golden Bridge of Ascension. It's the ceremonial gateway between the mortal realm and the Heavenly Domain—the bridge every soul crosses when they're deemed worthy of ascension. It's been closed for three hundred years due to structural concerns." Her voice carried a weight of ancient frustration. "The emperor would like to open it again. Before the next Ascension Festival. Which is in six weeks."

Liu Yang's mind raced. A bridge. He'd barely had time to walk across a bridge, let alone inspect one. The engineering challenges alone—

"The bridge is the most complex structure in the Heavenly Domain," Feng Bo said grimly. "It's woven from the prayers of a thousand generations. It shifts and changes with the beliefs of the faithful. No two crossings are the same. It's not stone or steel or qi-steel—it's something else entirely."

Liu Yang looked at his calculations, still pinned to the workbench. At the ruined furnace. At the scroll in his hands.

"Six weeks," he said. "To fix a bridge that's made of prayer and has been broken for three hundred years."

The Inspector nodded. "The emperor has faith in you."

"He has faith in me, or he wants an excuse to dissolve me?"

The Inspector almost smiled. "Perhaps both."

She left. The doors slammed shut behind her, leaving Liu Yang alone with the wreckage, the silence, and a scroll that felt heavier than the furnace he'd watched die.

Feng Bo stepped forward, his expression complicated. "I misjudged you, mortal. I thought you were a fraud—a man who spoke numbers but understood nothing of craft." He looked at the split in the furnace wall. "But you saw the flaw. You identified it before I did. You were trying to fix it when the test destroyed it."

"There's nothing to fix here anymore." Liu Yang looked at the ruined furnace, at the years of work melted into slag. "It's gone."

"The furnace is gone." Feng Bo's voice was quiet. "But the need for heartstone remains. And I have a question, mortal."

"What?"

The old smith's eyes met his, ancient and sharp. "You said you could build a better furnace. Three times the output at half the cost. Were you lying to save your skin, or did you actually mean it?"

Liu Yang looked at the workbench. The calculations. The three days of frantic work that had ended in failure.

"I meant it," he said slowly. "But I need to understand how heartstone works first. The physics of it. The way it stores qi, releases it, degrades over time. I can't design a system around materials I don't understand."

Feng Bo was silent for a long moment. Then he turned and walked toward the back of the forge, where a heavy iron door stood locked and rusted.

"Follow me," he said.

Liu Yang hesitated. "Where are we going?"

Feng Bo pulled a key from his robe—ancient, ornate, clearly older than the forge itself. "The Jade Emperor isn't the only one with secrets, mortal." He unlocked the door, revealing a staircase spiraling into darkness. "There's something I need to show you."

THE ECHO OF A BROKEN BRIDGE

The steps descended into a darkness that felt older than time itself. Liu Yang followed Feng Bo down, his footsteps echoing in the narrow stairwell, the air growing thick with the smell of dust and something metallic—like copper and ozone, the scent of a storm about to break.

"How far down does this go?" Liu Yang asked.

"Far enough."

The staircase opened into a vast underground chamber. Liu Yang stopped at the threshold, his breath catching in his throat.

The walls were covered in writing—not the calligraphy he'd seen in the Heavenly Domain, but something older, more primitive. Symbols carved deep into the stone, glowing faintly with residual qi. They covered every surface, floor to ceiling, like a library that had grown wild and taken over the architecture.

In the center of the chamber stood a pedestal. And on the pedestal—

"What is that?" Liu Yang's voice was barely a whisper.

Feng Bo stepped aside, letting him approach. The object on the pedestal was a sphere about the size of a human head, made of a material Liu Yang couldn't identify. It wasn't metal or stone or crystal. It looked like it was made of frozen light, captured in a moment of impossible stillness, swirling with colors that shifted and changed as he watched.

"That," Feng Bo said, "is the heartstone core."

Liu Yang looked at him sharply. "I thought heartstone was mined."

"Most of it is. The raw material comes from the depths of the Heavenly Domain, from veins that
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