Hermione Granger is crucial to Harry and Ron in their successful mission to solve the mystery of the Chamber of Secrets. Hermione is revived after Harry kills the basilisk, but she is distraught to learn that all end-of-year exams have been cancelled as a school treat. Hermione buys a cat named Crookshanks, who takes to chasing Ron's pet rat, Scabbers. Before the start of term, Professor McGonagall secretly gives Hermione a Time-Turner, a device which enables her to go back in time and handle her heavy class schedule, though this is not revealed until the penultimate chapter. Much tension comes into play
Harry Potter and the Goblet of Fire Harry Potter and the Goblet of Fire Harry Potter and the Goblet of Fire is a fantasy book written by British author J. K. Rowling and the fourth novel in the "Harry Potter" series. It follows Harry Potter, a wizard in his fourth year at Hogwarts School of Witchcraft and Wizardry and the mystery surrounding the entry of Harry's name into the Triwizard Tournament, in which he is forced to compete. The book was published in the United Kingdom by Bloomsbury and in the United States by Scholastic; in both countries the release date was 8 July 2000, the first