The tunnel sloped downward, the air growing cooler and heavier with every step.
The faint glow of the Celestial Master’s Seal cast long shadows across the packed earth walls, and the soft, rhythmic sound of flowing water echoed from far ahead.
After walking for nearly half an hour, the passage opened into a vast, cavernous chamber so large the far walls vanished into darkness.
Below lay a sea of shimmering silver—rivers of pure mercury winding through the floor, shaped exactly like the Yellow River and the Yangtze, flowing around islands of solid gold that rose like ancient mountains.
Above, the ceiling was studded with thousands of tiny glowing stones, mapping the stars as they had been seen two thousand years ago.
Floating in the dead center of the mercury sea, resting on a platform of carved white jade, sat a square seal of pure white jade.
Its edges were worn smooth by time, but the characters carved into its face still glowed with a faint, deep blue light.
“The Imperial Seal of Qin Shi Huang,” Zhang Jiuxuan said softly.
“The first seal to ever bind the dragon veins of all China into one.” He stepped forward, his feet touching nothing but thin air above the mercury—yet he stood firm, held up by the golden light of his own seal.
But before he could reach the jade platform, a low rumble shook the whole chamber.
From the mercury rivers rose massive shapes—dragons made of liquid silver, their scales rippling, their eyes burning with cold starlight.
They circled the platform, roaring without sound, their bodies coiling like living barriers.
“Spirit guardians,” Zhang Jiuxuan said.
“Bound to the mercury since the tomb was sealed.
They do not know friend from foe—only that they must not let anyone take what rests here.” He stopped moving, lowering his seal slightly to show he meant no harm.
“I do not come to steal,” he called across the silver sea.
“I come to keep what is yours from being stolen.
Strangers have come to dig up this land, to turn its strength into a weapon, to tear apart the peace you have guarded for millennia.” The silver dragons paused.
One dipped its head low, as if studying him.
A voice echoed in his mind, deep and ancient, like stones grinding together.
*”Many have come with kind words.
All have come with greedy hands.
What makes you different?”* Zhang Jiuxuan held up his own Celestial Master’s Seal, letting its golden light meet the blue glow of the Imperial Seal across the water.
“I carry the burden of the guardians who came after you,” he said.
“I have walked every shore, climbed every peak, stood in every valley that draws strength from the root you watch over.
I have fought to keep this land whole.
And I will die before I let it be broken.” For a long moment, there was silence.
Then the lead silver dragon dipped its head in a slow nod.
The others pulled back, opening a clear path to the jade platform.
*”Prove it,”* the voice said.
*”Bind your seal to ours.
Let the land itself judge your heart.”* Zhang Jiuxuan stepped forward until he stood at the edge of the platform.
He pressed his Celestial Master’s Seal gently against the Imperial Seal.
Golden light and blue light swirled together, merging into a soft, brilliant white that filled the whole chamber.
Memories flooded into him: the sound of hammers building the first great wall, the roar of armies uniting the warring states, the quiet prayers of scholars and farmers, the weight of every oath sworn to protect this soil.
And in return, he poured in all he had seen and done—every curse broken, every spirit set free, every life saved.
When the light faded, the two seals pulsed as one.
The silver dragons bowed low, then sank back into their rivers, leaving only the gentle flow of mercury behind.
Zhang Jiuxuan lifted the Imperial Seal carefully.
It felt light, yet heavy with the weight of two thousand years.
As he turned to leave, he noticed a faint carving on the underside of the jade platform—an ancient map marked with three red lines, stretching west, north, and south.
“Three more roots,” he murmured.
“And then the heart of the enemy itself.” He walked back through the tunnel, the two seals glowing in unison against his chest.
When he emerged into the twilight, the terracotta warriors stood exactly as he had left them, their silent vigil unbroken.
Lin Weiyao and Huo Yunxi rushed forward, their faces lighting up when they saw the seal in his hands.
But Zhang Jiuxuan’s gaze turned west, toward the snow-capped peaks of the Kunlun Mountains, where the first red line on the map led.
“They have already reached the source,” he said quietly.
“We have no more time to spare.”