Harry spent a miserable summer with the Dursleys. During a dinner party hosted by his uncle and aunt, Harry was visited by Dobby, a house-elf. Dobby warned Harry not to return to Hogwarts. Harry politely disregarded the warning, and Dobby made a mess in the kitchen, making the Dursleys very mad. The Dursleys angrily locked Harry up in his room for the rest of the summer. Luckily, Harry's friend Ron Weasley saved Harry in a flying car, and Harry happily spent the rest of the summer at the Weasley home.
While shopping for school supplies with the Weasleys, Harry encountered Lockhart, one of his teachers, who demanded to be in a photo shoot with Harry. Harry then encountered Lucius Malfoy, the evil father of one of Harry's enemies, who almost started a fight with Mr. Weasley. As Harry prepared to return to Hogwarts, he found that he and Ron were unable to enter platform 9 3/4, so they flew the Weasley car to Hogwarts.
They landed messily, and both boys were given detentions. Lockhart believed Harry flew the car to get attention.
Quidditch practices began and Draco Malfoy was the new Slytherin seeker. On the field, he called Hermione a "mudblood," insulting her Muggle heritage. After taunting Hermione, Draco was the suspect when, on Halloween night, someone petrified the school caretaker's cat and wrote a threatening message. Before the cat was attacked, Harry heard an eerie voice twice. He heard it first during his detention and second during a party, just moments before the cat was attacked. Everybody in the school was alarmed. By doing some research, Harry, Ron, and Hermione learned that fifty years ago a chamber at Hogwarts was opened and a student was killed.
Playing for Gryffindor, Harry won the Quidditch match against Slytherin. During the game,