After the excitement in Diagon Alley, Hermione only had just enough magical energy left to Apparate her back to the Lestrange family estate in Norfolk before she collapsed. How she made it from the gates to the bed across the corridor from Rodolphus" room, she wasn't sure. Based on the fact that she'd been changed into a soft nightgown and her body cleansed of all traces of the acrid smell of Fiendfyre smoke, she assumed it was one of the army of house-elves that catered to the needs of the family. Rodolphus might not miss a chance to see her naked, but he wasn't the sort to take such thorough, gentle care of anyone.