Harry Potter and the Chamber of Secrets Harry Potter and the Chamber of Secrets Harry Potter and the Chamber of Secrets is a fantasy novel written by British author J. K. Rowling and the second novel in the "Harry Potter" series. The plot follows Harry's second year at Hogwarts School of Witchcraft and Wizardry, during which a series of messages on the walls of the school's corridors warn that the "Chamber of Secrets" has been opened and that the "heir of Slytherin" would kill all pupils who do not come from all-magical families. These threats are found after attacks which leave residents of the school petrified. Throughout
Harry Potter and the Half-Blood Prince US on 8 September 1999. "Harry Potter and the Goblet of Fire" was published on 8 July 2000 at the same time by Bloomsbury and Scholastic. "Harry Potter and the Order of the Phoenix", the longest novel in the Harry Potter series, was released 21 June 2003. After the publishing of "Harry Potter and the Half-Blood Prince", the seventh and final novel, "Harry Potter and the Deathly Hallows", was released 21 July 2007. The book sold 11 million copies within 24 hours of its release: 2.7 million copies in the UK and 8.3 million in the US. Rowling stated that