C58 The Secret of Ye Qing

In the alley outside the back door of the auction house, the man in black wore a helpless expression.

After thinking for a moment, the black clothed man continued, "He only told me to use my blood to test what kind of energy it contained with my own Jade Cloud Sect."

Energy?

Lan Xiangyu had vaguely guessed a few things, but he couldn't be sure