Led by Ling Xuan, the group rode a sacrificial altar as it sped through the air.
The altar was a square pyramid overall, nine zhang tall, with a base roughly six zhang in diameter.
It narrowed layer by layer from bottom to top.
The uppermost surface was a platform, with a formation eye at its center.
The base was forged from Nine-Heaven Chaotic Yellow Iron Essence and possessed an innate force of suppression and defense.
The middle layer was made from Earth-Vein Crystals inlaid with Red-Earth Crystals. It was divided into eight directions, corresponding to the Eight Trigrams.
The top layer was condensed from Ten-Thousand-Year Earth Marrow, with an enormous Earth Spirit Pearl wrapped within it.
As it moved, the inside was exceptionally quiet, without even the faintest sound of wind.
Yet from the outside, it was like a mountain shifting across the sky, its momentum astonishing.
Besides Xu Changqing, there were five others being sent to the front lines this time.
Without exception, even the weakest among them was at the initial stage of the Human-Grade Golden Core.
After flying for half a day, the distant sky gradually became stained red by firelight.
A scorching aura.
A chilling aura.
All manner of auras intertwined, making the scene especially chaotic.
Ling Xuan said in a clear voice, "Up ahead lies the imperial city of the Black Rust Dynasty."
Xu Changqing and the others looked over at his words and were immediately startled.
Though it was merely an imperial city of the mundane world, its scale was incomparably vast.
The outer walls of the imperial city stood twenty zhang high and five zhang thick.
They were not built from ordinary bricks and stones. Mystic Iron sand and Demon-Sealing Stone powder had been mixed into the rammed earth, while the wall surfaces