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
Hermione Granger she would have seen Harry, Ron, and herself "alive and unscathed, and Voldemort finished." Hermione has also learned to ignore what bullies such as Draco say to her, often preventing Harry and Ron from retaliating and thinking of some way to outsmart him. She accepts her status as a Muggle-born witch, and states in "Deathly Hallows" that she is "a Mudblood and proud of it". Hermione is portrayed during the whole series as an exceptionally talented young witch. Rowling has stated that Hermione is a "borderline genius." She received ten O.W.L.s, which were nine Outstandings and one Exceeds Expectations. She