"I guess that could happen..." Like a cave that's one long U shape going back to where it starts. Damned inconvenient, though.

"How sure are people? Have they actually marked the way they went? Maybe they just got turned around. People get lost in the alleys back home--I bet it's not so different in a cave."

Probably even worse. But that thought isn't enough to dissuade him from considering that he check it out himself.