C166 Unknowns in the lake

Everyone, continue on your way. After you are informed that I have night vision, I will be the one to lead the way. After walking about a hundred meters, he arrived at the place where the black shadow was just exposed. There seemed to be quite a lot of sticky liquid at the edge of the sink.

The middle-aged man squatted down, dipped his hand in the mucus and sniffed it