To get to this one, you'll need to do some legwork. first, go to the top floor of the library, and you'll find a book about the board game Zo on a table. take that book to the chef playing the game down on the librarys main floor. he'll in turn give you his closet key. wherein you'll find a pair of fresh zubaz, a lefter that raises his turtle tank, and a button that opens the way to the tableau to your right. just follow the hall again.