I'm at The Guard Tower with two cards in the location deck: Collapsed Ceiling and Muck Graul. I did not defeat the Collapsed Ceiling (CC) and it's displayed face up. Both of my characters are at this location. Every exploration brings up Muck Grail, never CC. I think that's incorrect based on the card's text.
My characters can't leave the location because of CC and they can't defeat MG (no fire cards).