Molly and the Weasleys are staying at the Order headquarters, Number Twelve, Grimmauld Place, in "Harry Potter and the Order of the Phoenix", where she and Sirius fight over how much to tell Harry about the Order's operations. Days later, Molly is found in the drawing room, with a boggart that transforms into her dead family members and Harry, and confesses her nightmares of losing more family members to Voldemort and the Death Eaters. At the beginning of "Harry Potter and the Half-Blood Prince", Molly clashes with Bill's fiancée, Fleur Delacour; however, at the end of the novel, when Molly rushes to Hogwarts with her husband and Fleur to tend to her son Bill, who had been ferociously attacked by Fenrir Greyback, Fleur is greatly offended when Molly jumps to the conclusion she will break up with Bill due to his scarring, letting her know in no uncertain terms that his scars are a reminder of the courage that Bill displayed. Fleur and Molly unexpectedly hug and begin to see each other in a much more positive light.