forgetful talented heroes suddenly remembered that they forgot to seal the tunnels to the Wormwrithings (similar to remembering that you left the oven on, but with more doom). They returned, sealed the tunnels, and then decided to recover the crown that was lost during the last drow invasion. The haunted castle has thus far been less “haunted” than originally anticipated. The party has killed fire bugs, bat-type-things, and a few skeletons for good measure.
Where you stand right now is in the middle of a hidden meeting hall, and you’re trying to decide whether to take a short rest or a long one. I mean, it is hidden behind a secret door. ;)