Long Yu and Lan Shou landed on the ground. The sky was covered with dark clouds, and blue lightning flashed from time to time. Long Yu lowered his head and glanced at the stone slab under his feet, and the concave and convex patterns were visible.

Lan Shou stood behind Long Yu, holding a compass in his left hand. The compass kept turning in his hand, and Lan Shou's eyebrows were wrinkled into a shape of a "王". Lan Shou looked up at the sky, and the corners of his mouth moved ...