Rowling, J. K. Harry Potter and the prisoner of Azkaban

Harry Potter and the Prisoner of Azkaban is a fantasy novel written by British author J. K. Rowling. It is the third instalment in the Harry Potter series. The novel follows Harry Potter, a young wizard, in his third year at Hogwarts School of Witchcraft and Wizardry. Along with friends Ron Weasley and Hermione Granger, Harry investigates Sirius Black, an escaped prisoner from Azkaban, the wizard prison, believed to be one of Lord Voldemort's old allies. The book was published in the United Kingdom on 8 July 1999 by Bloomsbury and in the United States on 8 September 1999 by Scholastic, Inc. Rowling found the book easy to write, finishing it just a year after she began writing it. The book sold 68,000 copies in just three days after its release in the United Kingdom and since has sold over three million in the country. The book won the 1999 Whitbread Children's Book Award, the Bram Stoker Award, and the 2000 Locus Award for Best Fantasy Novel and was short-listed for other awards, including the Hugo. The film adaptation of the novel was released in 2004, grossing more than $796 million and earning critical acclaim. Video games loosely based on Harry Potter and the Prisoner of Azkaban were also released for several platforms, and most obtained favourable reviews.