C1212 Alarm(part ii)

Fellow Daoist Yang, you set up the Five Elements Lightning Dao Formation to exterminate the world. However, this old man has heard that the key to you setting up this formation is a lightning source treasure. It's even rumored that this treasure originates from Immortal Cao Xun's Secret Realm treasure. Taoist Miao Chi asked with a smile.

Yang Junshan didn't mind being so clear about this