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
Fictional universe of Harry Potter of the sixth book. Pure-blood supremacists believe blood purity is a measure of a wizard's magical ability – notwithstanding examples of highly skilled Muggle-born witches and wizards such as Hermione Granger and Lily Evans - and less skilled pure-bloods such as Neville Longbottom (whose skills developed in "Deathly Hallows" due to his heroism) – and Muggles to be low-life, having no magic in them. Supremacists apply the term "blood traitor" to pure-bloods who harbor no prejudice against non-pure-bloods (enjoying their presence and relations with them). The hostile wizards and witches in the "Harry Potter" books are almost all supremacists, while