The Hell's energy that Zhao Hai had sensed earlier was the black gas. They were only rising from the well and had not seeped into other places. This made Zhao Hai even more curious.
Zhao Hai really wanted to know what was under the well, who built it, when was it built, why did he build it, and who put the stones on the well. All these were unsolved mysteries.
However, Zhao Hai was already in the well and was slowly drilling down. The well was filled with soil, but the soil here was different from the soil in other places. Because it had been affected by Hell's energy for a long time, it was very corrosive. Zhao Hai knew that this was a destructive force. In the words of cultivators, it had the aura of death, which had a great influence on cultivators.