```
"You found traces of the Huo family?" Lin Wu asked, surprised.
Bai Jing hummed in affirmation, "Downstream of that river, there's a lake with a waterfall. It was there that my people discovered a member of the Huo family. But he was already dead. At first, we didn't know who he was, it was only after recovering the data from the cellphone found on his body that we saw a few restored messages and learned his identity."
"We also learned from this that he had several accomplices, and they had come to that area searching for something. They encountered danger after entering a certain place, and then they scattered. He himself suffered serious injuries and presumably drifted out with the current. This means that there is an underground river there. Therefore, Ba Ning and I obtained diving equipment and wanted to dive into the lake to see if the bottom was as we suspected."
"There really is an underground river?" Lin Wu asked.
