This was A Cool Thing On The Internet a decade and a half ago. I just recently tried solving it again.
Works best in Firefox. (Because browsers evolved that way, not because it was “optimized” or anything.)
This is an awesome throwback to waaay too much of my time around college – it inspired (what eventually became) http://revengerists.com/library/ – originally the library game was hidden, and to find it you had to navigate a few domains of notpron-style puzzles before being tasked with the library