Zhao Hai stood by the underground river for a while before turning to leave. As soon as he turned around, he saw a huge tongue sticking out from the underground river and rolling towards him. Zhao Hai felt a gust of wind behind him and knew that something was wrong. He rolled forward without looking back, and an earth wall appeared behind him.
Zhao Hai knew very well that this attack couldn't have come from a cultivator. There were no cultivators around, so it could only be the demonic beast in the underground river. It was probably the frog-like demonic beast he had seen earlier.
Although he only caught a glimpse of the monster, Zhao Hai was sure that the frog-like monster was definitely at least at the earth-repelling stage. If it was really the monster that attacked him, the only thing he could do now was to run as fast as he could.