Originally Posted by Postwave
Uh, okay, now I'm feeling stupid. I found the secret lever (before finding this post) and lock picked it (weird, but okay...) and there was a click, and my journal updated saying I solved a puzzle and found a secret passage, but I can't, for pete's sake, actually FIND that secret passage. Where am I supposed to physically go?

It's opposite the side of the room you enter from, sort of in an alcove.