C80 A Clue.

After returning to Linghai Giant City, Chu Yun called Shopkeeper Yang, who was distributing the spoils of war.

"This is what I found after investigating the Guanlin Peak's defensive line. It seems to be a special kind of mineral crystal that contains spiritual energy. Do you recognize it?"

Chu Yun placed the powder of the purple crystal on the table for Shopkeeper Yang to see