She goes through a long-term relationship with Mason Greyback, a purebred werewolf. In the ensuing conflict, he assists Ron in defeating werewolf Fenrir Greyback. Larvae, which are known as "greyback cane grubs", are small and white. First, he inspired the werewolf Fenrir Greyback in the "Harry Potter" series by J.K. Rowling. Bellatrix and Greyback attack and burn down the Burrow, drawing Harry into a battle. Greyback is known for targeting young children. Greyback, buff back, pied, spotted or saddleback refers to the pattern of plumage. Fenrir Greyback is a werewolf who is involved with the Death Eaters. Alex and Mason Greyback turned him back into human again using 'Zombie bites treatment' lotion. Unlike most werewolves, Greyback thirsts for blood even in his human form. Dave Legeno portrayed Greyback in the film adaptation of "Harry Potter and the Half-Blood Prince".