C879 Imperial City of Yujing

"This is …"

Sensing the terror of that drop of purple liquid, Cheng Feng couldn't help but be shocked in his heart.

"This should be a drop of Lightning Liquid!"

's voice sounded beside his ears.

"Lightning Liquid?"

Cheng Feng asked: "Could it be a liquid formed from thunder and lightning above the ninth heaven?"

"You can think of it that way