C636 Northern Ocean Divine Art and Wave Treading Steps!

"I wonder if Duan Yu has been here before. It would be really disappointing if he has been here before. "

Lee Yan said to himself. Without any hesitation, he stretched out his hand and pushed open the stone door.

"Rumble. . . "

The loud sound of the stone door opening echoed in the cave. At the same time, an aura that had been sealed for a long time rushed out from the stone room