even if it left behind a scent, it would be easily dissipated.It is still difficult to track."Theoretically speaking, it's still traceable." Huo Yu's voice came at that moment. "For example, if you op... return. 。。What is inside, it's unimaginable. 。"By the way, what was the cultivation level of this Realm Lord named Shi Yuan... back then" On their way to the Sword Sect ancient tomb, Fang Yu turned...