C813 Whirlpool of mystical water

"Ling Mansion!"

The moment they saw the main entrance to the cave emerging from the top-grade Yuan Meridian, the expressions of all four people, including Li Mu, Yan Chong Tian, and the blue-robed middle aged man, changed. All four of them placed their gazes on the main entrance to the cave at the end of the tunnel.

On the entrance of the cave, there was a square groove