C2125 The Three Essentials of an Expert

Tong Fengwu replied, "It was Shu Aobai who gave me the soul. They are all dead people. I only need to put the soul into the furnace."

"The soul that Shu Aobai gave you?" I thought for a moment and nodded, "I know, so that's how those souls are used."

No wonder all of the Seven-killing Island, including Mizar Island, were collecting this kind of soul. Part of these souls were given to Shu Aobai