f energy instantly enveloped Xuanyuan Kai.Xuanyuan Kai only felt his legs go soft, and instantly sat down on the ground!"N-no objections!" Xuanyuan Kai's face was ashen, but he still gritted his teeth..., and a guess seemed to form in his mind.The winding underground river flows from the bottom of the copper coffin, flowing continuously for thousands of years. If you look down from mid-air, the under...