Hermione Granger completing Snape's homework assignment from the class, while Crookshanks proves vital in exposing Scabbers as Peter Pettigrew, a friend of James and Lily Potter who revealed their whereabouts to Lord Voldemort the night of their murders, and was able to wrongly implicate Sirius Black (revealed to be Harry's godfather) in the Potters' deaths. The Time-Turner enables Hermione and Harry to rescue Sirius and the hippogriff Buckbeak. Hermione is horrified by the cruelty that house-elves suffer, and establishes S.P.E.W., the Society for the Promotion of Elfish Welfare, as an effort to gain basic rights for them. She is Bulgarian Quidditch prodigy
Harry Potter and the Philosopher's Stone During the book, Harry makes two close friends, Ronald Weasley and Hermione Granger. Ron is described by Rowling as the ultimate best friend, "always there when you need him". Rowling has described Hermione as a "very logical, upright and good" character with "a lot of insecurity and a great fear of failure beneath her swottiness". Rowling also imagined a supporting cast of adults. The headmaster of Hogwarts is the powerful, but kind wizard Albus Dumbledore, who becomes Harry's confidant. Rowling described him as "epitome of goodness". His right hand is severe Minerva McGonagall, who according to the author "under that