C420 To the East to the West

"Master, what is this Black Tortoise Rock?"

Chen Jingyu asked.

"The Black Tortoise Rock is a type of ore that is formed after a volcanic eruption. The reason why the Thunder Accumulating Lake has such powerful lightning is because of the Black Tortoise Rocks that are densely packed around the Red Water Mountain."

Old General Bai explained unhurriedly.

From his expression