Chapter 1424 The stone walls of this space are polished as smooth as a mirror, which is bright and instructive.

There are no hidden doors or other abnormalities on the stone walls.

However, this is only an appearance. If Tang Huan had probed it correctly before, there might still be a Tao map hidden on the inner wall of the cave space. However, this Tao map is completely introverted and reveals a weak breath to the extreme. If not, no one else will notice it except Tang Huan.

After a while, Tang Huan's right palm was pressed and landed on the stone wall.

Heaven spills out of the palm like...