Grimmauld Place turns into a battlefield of Doxies, cursed cabinets, and Kreacher’s mutters while Molly Weasley leads a full house clean. Sirius clashes with the elf, the twins pocket contraband for Weasleys’ Wizard Wheezes, and Harry quietly pockets a heavy S-carved locket that feels just like the diary… maybe a Horcrux. Later, a party for new Prefects ends with Moody’s First Order photo, Harry’s grief spiking, and Molly’s Boggart in the drawing room. Thoughtful, character-first Order of the Phoenix era with guardianship overtones and sharp worldbuilding details.