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
Magical objects in Harry Potter his grandmother, stating that he ignored it and that the result was horrible. Subsequently, Neville receives another Howler from his grandmother after Sirius Black uses his list of passwords to enter the Gryffindor Common Room in "Harry Potter and the Prisoner of Azkaban". Hermione receives one in "Harry Potter and the Goblet of Fire" after Rita Skeeter publishes an article about the (fictional) relationship between Hermione and Harry. (In the film version, this incident is not referred to.) Dumbledore sends Harry's aunt, Petunia Dursley, a Howler in "Harry Potter and the Order of the Phoenix" to remind her of the