C173 The most obvious killer (middle)

But when we got downstairs, we found that the shout was not coming from the girls' dormitory, but from someone on the banks of the Golden Water River nearby.

We ran over. There were two people standing by the river, a man and a woman. They seemed to be a couple.

"What happened?" I asked.

One of the girls pointed to the river surface with a trembling finger and said, "There