Arc 12The Black Case and Joy Magic
Will helped expose Peter Pettigrew and clear Sirius Black, while pursuing the mysteries of memory, the Patronus Charm, and Joy Magic. After meeting Santa Claus and earning a Ministry honor, Will left the arc with new magical knowledge and continued questions about magic and emotion.
- Will abducted Lockhart, learned the Memory Charm, and erased Lockhart’s memories of the encounter.
- Will persuaded Fudge to reconsider Sirius Black’s conviction and carefully altered Peter Pettigrew’s memories while the Ministry began investigating.
- Will helped Lupin transform safely under the Werewolf Venom Curse, and the Aurors captured Peter after he changed back from Scabbers.
- The Wizengamot cleared Sirius, restored his rights, and charged Peter with the crimes previously blamed on him.
- Will tested a darker stage of his Patronus that drained joy, then used it on Muggle villages to draw Santa Claus to him.
- Santa Claus agreed to teach Will Joy Magic in exchange for Will bringing joy to the Muggles he had affected, and warned him about tampering with time.
- Will learned Ancient Magic from Santa Claus and concluded that collective belief sustained Santa as a magical phenomenon.
- Fudge announced Will’s Order of Merlin, Third Class nomination in Hogsmeade, where Will later joined Sylvia and Sirius to discuss the Black family books.