C900 Four Paintings

Qin Feng thought for a while, then walked to a corner and used his hand to move the weeds on the ground.

A square stone slab was revealed!

"As expected... I found the secret passage!" Qin Feng raised his head and said.

"Sure, how did you find it?" The bone spur was very curious.

"Because the tunnel leading to the underground can only be on the ground