Super cool idea! I love the dismal tone to it all :D
I found a somewhat critical bug - I can't scroll down on the "Welcome to Hell" sign as there are no scrollbars, and since the sign is very long this pushes the "Continue" link out of reach. I got around this by zooming out my screen.
I explored the library a little and went down to the bottom floor. I don't know if the game is actually supposed to be completable given that it takes place in library hell, but it was fun to wander :)