C2822 Mine Exploration Above(2)

"I say, before we come here, we should ask Young Master Huangfu about the depth of this mine. How can there be such a long mine in the world? "Loong Aoqi felt a headache coming on.

"That's right. In the past, he heard that the Yellow Spirit Mine in the Yellow Spirit Palace was the longest in the Cangxi Province, only two thousand miles. Judging from the size of this cave