Morgana gave a huge shrug. How would she know?

"Your guess is as good as mine. I didn't do anything out of the ordinary before I came here. My latest gig got cancelled-"

Translation : Her latest scheme got foiled by Darkwing.

"So I went back to my hang-out to rehearse-"

Translation: Retreated to the hide-out to lament their loss and come up with a new scheme.

"Worked on a few new songs, and then I went to sleep in my coff-bed. Went to sleep in my normal mortal bed."

Translation: ... She wasn't going to say coffin. Shush.

"And the next thing I know, I'm wandering in this place full of familiar sights without any familiar faces."