Quote Originally Posted by enderlord99 View Post
Was that the guy who managed to gain power over the maze he was trapped in, as well as letting other people in and out, and even giving it Harbinger-House—esque anti_lady properties, all by writing "I rule this place, not the Lady" and "This place exists in Sigil's place, but it is not Sigil" and several similar things into a book that was magically always accurate? Or am I thinking of something else?

EDIT: The thing I'm half-remembering has some connection to Umbril, I think.
That is something completely unrelated.

This is a literal library, that the Lady has an interest in. We don't know if she made it or what, but she personally makes sure that people who mess with the library get comeuppance. One of the better collections of lore in the multiverse, since books come in from everywhere and the Lady makes sure that no Library of Alexandria incidents can occur.