"It's... not a great place. And it's really weird that suddenly, there are ghosts in a place where there were none at all before."

No ghosts at all is unnatural, but them all sprouting in an area so full or dark energy is not good either. Something is calling to the spirits there.

"... I'm sorry they interrogated you so much, but I don't think they're very used to seeing people who are not human. That probably agitated them a bit."