C595 The Origin of Infinity

"It is said that the key to the ancient tomb is in this Sword River. Why can't I see it?" Ao Jianliu suddenly said, "So many people are fighting for a key. It must be an extremely tragic battle!"

Yuwen Tian looked at the fist-sized balls of light in the third layer of sword flow and said: "That should be the key to the ancient tomb! Although it's not one