Magical creatures in Harry Potter harbor an attraction to imagery morbid and melancholy. Ghosts are very sensitive about their condition: when the Ministry initially classified them as sentient creatures with full legal rights, they claimed that the term was insensitive and received a separate "Spirit Division", apparently to control the activities and haunting locations of troublesome ghosts (as when Myrtle was forced to haunt the place of her death (Hogwarts) after she had disrupted the wedding of the brother of Olive Hornby, a girl who had teased her at school). Named Ghost characters: Peeves, the Hogwarts poltergeist, is not considered a ghost, but an "indestructible
Hogwarts staff Quirrell is the Defence Against the Dark Arts teacher at Hogwarts during Harry's first year and secretly a follower of Lord Voldemort. Prior to his employment at Hogwarts, he is said by Hagrid to have had a "brilliant mind", and was a fine teacher while studying from books; some time before Harry's arrival at Hogwarts, "he took a year off to get some first-hand experience". Rowling stated in a live web chat on 30 July 2007 that Quirrell had worked at Hogwarts as Muggle Studies teacher for a certain length of time, before taking the cursed Defence Against the Dark