always too warm for people to remain awake, when you add the droning of professor binns, this class is easily the dullest one in the entire school. it's a wonder that anyone manages to stay awake as he goes on about the goblin rebellions in his monotone, still not having realized that he's dead.

the complex art of numbers and numerical charts. the few who take this class say very little about it to the others, because the subject is so confusing. but if you study hard, you can normally master the course by the end of your education, that is, if you're brave enough to take arithmancy all the way through till graduation.

this bathroom is much nicer than the common bathroom, and the prefects prefer to use it when they can, especially since it's like a spa on the inside. only a select few are allowed to ever see the inside, but if you're clever, or perhaps just lucky, someone will let slip what the password is and you can get inside as well.