The 4th Floor of the Tower of Abjuration holds the office of the Headmistress and her private room. It also holds the council room, where the Sentry council meets, the file room which holds files for every student, and the graduation room, where students go to meet their Nemesis Fiend and hopefully banish it during their final test. As the other towers do not have these rooms, the tower of abjuration is about one third higher than the rest of the towers of the Tower of Amn.