School continues and by October, everyone is into the routine. Harry is heading in from Quidditch practice when he runs into Nearly Headless Nick, who is upset about not being accepted into the Headless Hunt. Harry is preoccupied with getting better brooms for the team when Filch yells at him for his dirty robes and brings Harry back to his office. As Harry waits for him, he notices a flier for a Correspondence Course in Beginners Magic on Filch's desk and realizes that Filch is not a proper wizard. When Filch realizes Harry has seen it, he lets Harry go on the understanding that Harry won't tell anyone about it. Harry runs into Nick again, and Nick tells him that he will be having a 500th deathday party. On Halloween, Harry, Ron, and Hermione go to Nick's Deathday party in the dungeon. They mingle with the ghosts for awhile, then Harry hears the whispering voice again, saying "time to kill." They run to the hall, and they find Mrs. Norris the cat hanging, dead, near words that read, "The Chamber of Secrets has been opened. Enemies of the heir, Beware." Just then the student body files out of Hogwarts' Halloween feast, and Draco Malfoy arrives, grinning at the sight of the dead cat, and reading the sign aloud, taunting Harry and his friends.