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 Deathly Hallows – Part 1 addresses the wizarding media, stating that the Ministry remains strong despite Lord Voldemort gaining power and the Death Eaters committing mass killings of Muggles and infiltrating the Ministry. Meanwhile, Harry Potter, Ron Weasley, and Hermione Granger resolve to complete the mission Albus Dumbledore gave Harry by hunting down and destroying Voldemort's Horcruxes. Severus Snape informs Voldemort of Harry's impending departure from Privet Drive. Voldemort commandeers Lucius Malfoy's wand, due to his own wand sharing the same core as Harry's and therefore being unable to kill him. The Order of the Phoenix escort Harry to safety using Polyjuice Potion. During their