C4303 The Monster's Head

I don't know how Hua Wu Yi communicated with her soul servant, Black Spirit, but a black shadow appeared in front of Hua Wu Yi. After standing there for a while, it floated towards the wall next to him. Then... it stuck its body against the uneven rock wall. Then, the black fog that formed its body fluctuated violently. After a moment... it slowly squeezed into the wall.

After about ten seconds