C1473 Ore-magic

The cave was dark.

There were some water stains on the walls of the cave. Lee Zhen even heard the sound of flowing water coming from the depths of the cave.

However, in the eyes of a practitioner, these weren't even worth mentioning.

"You guys wait at the entrance, don't let anyone else in!"

Sensing the poisonous gas seeping out from the depths of the mine