C88 Underworld King Battle Armor

Mu Xiaobai accepted the task and naturally started to study the stone chest attentively.

Mu Xiaobai knocked on the chest, but the solid stone slab did not budge at all!

"If my guess is correct, this should be something left behind by the ancient civilization! The Floating Mountain of Purple Light Paradise was built on an ancient ruin! If I want to open this stone chest