No kidding. [It's actually kind of creeping him out but he's trying to process it logically. Scientists don't believe in ghosts! He's not freaked out by it! ... He'll just keep convincing himself of that.

So let's talk about the village because that is mildly less weird than hearing eerie voices.]

Yeah, you're right. To build a village at all here means they at least knew how to defend themselves and live here. I think it's more likely an outside force that caused it like a plague or invaders.