C31 Buried skeleton

After the manpower had entered the septic tank, Mao Xiaoting kept in touch with them using the walkie-talkie, understanding the situation below.

"How is it? Did you find anything? "

Mao Xiaoting who was standing on the ground asked while holding her walkie-talkie.

"None... We didn't find anything... Hm? What is that? "

At that moment