The Secret of Amnesty Lodge

There's another world, one that is connected to our own. And us humans have been crossing over into it for as long as we've been around. The inn was stripped clean by the time the FBI arrived. We found the Batcave you had going on in the cellar, but nobody was there. You answer me one question and I'll tell you what you want to know. What happened to all my guests at Amnesty Lodge? Turn off the fees.