C1546 The Siege Began

Ye Hong Tian took a closer look at the parchment that was inscribed with the formation. As he read, he muttered: "This material Xue Kai gave me is in the Cosmos Sack, and so is this... This can replace..."

Fifteen minutes later, Ye Hong Tian filled the Ancient Snake Demon's room with heavenly treasures and other things. These were the materials needed to set up the formation