Peter Pettigrew is Revealed as an Animagus

PAGES: 366-367

Remus Lupin and Sirius Black use their wands to transform Scabbers back into Peter Pettigrew, revealing his true form for the first time. Pettigrew, a small, grubby man with rat-like features, pleads for mercy, but both Black and Lupin confront him with the truth about his betrayal of Lily and James Potter.