There is nary a librarian or book lover who has not entertained the idea of stumbling upon a secret library. Often these reclusive rooms hold mystery, fantasy, and otherworldliness. For some odd reason or other, secret rooms of any kind, whether used for torture or pleasure . . . or a bit of both, have covert entrances in the library. Why do you suppose that is? Is it because a personal library evokes the benign or is it simply a place one does not often traverse?. . . I wonder . . . What is more compelling than a personal secret library? A public one! Hidden in plain sight in the city. Harboring all sorts of mysterious cartography– A fine place to begin an epic quest!