Wei Yuan and Yu Zhizhuo entered the mountain body along the mine tunnel.
These mine tunnels are extremely grand, ten zhang high, and thirty zhang wide, with two iron tracks laid in the center. Heavy-loaded trains continuously rumble back and forth, transporting blood jade treasure soil made from the blood and flesh of immortals, dumping it in the depot, and then being carried away by trucks and flying boats to be transformed into elixir materials and treasures, eventually becoming the foundation of Qingming.
Wei Yuan paused, first carefully observing the mine tunnel, a small miracle in its own right.
Supported by steel pillars on both sides of the tunnel, with beams placed at the top. The steel pillars are engraved with countless runes, glowing faintly.
