Pansy had told them that the "wolves would be asleep by midnight tonight – they'd been out carousing in their human shapes last night, apparently. Greyback and eleven others slept upstairs; Greyback in the master bedroom with three girls, and five men shared the other three bedrooms, with more women. The rest of the "wolves slept downstairs, in the two bedrooms, study,  and lounge. There was a Caterwauling Charm set about the house's perimeter so no way to sneak up on them, but Pansy had sketched the house's layout. They hoped that if they went in fast they could at least subdue the ground floor before Greyback and the others that slept upstairs joined the fight.