Han Sen flew above the small section of clear water, and he tried to see whether there was any difference in the water. That section of the lake looked like a well. It was clear from top to bottom, yet all the water around it was dark. The dark water and the clear water didn't integrate at all.
However, it was already after sunset, and the water was very deep, so even if they looked directly down on the clear water, they could only see darkness. They had no idea how deep it was.
Unlike the dark lake around it, there were bubbles coming up through the clear water, as if there were lots of fish below.
"Teacher, what's wrong with the water here?" Xu Mi asked Han Sen, standing beside him.
Han Sen thought, "How should I know anything about it? I'm not a god who knows everything."
Of course, Han Sen didn't say that out loud. He smiled at Xu Mi and said, "Just wait here for now. I'll go down there and check. Don't enter the water until I come out."