Mark replied, "It's at most seven feet. Generally, it wouldn't be deep enough to drown someone. There are deep and shallow areas. But—"

"But what?" I asked.

Mark's voice grew ominous as he said, "But unexpected situations can happen, I suppose."

I considered that if I couldn't get a confession from Mark tonight, I could use sleeping pills to knock him out and then drown him in the pool. But that was just a thought because I would never actually kill someone. Mark is scum, ...