‘Dobby!’ she screamed, and even Bellatrix froze. ‘You! You dropped the chandelier –?’
The tiny elf trotted into the room, his shaking finger pointing at his old mistress.
‘You must not hurt Harry Potter,’ he squeaked.
‘Kill him, Cissy!’ shrieked Bellatrix, but there was another loud crack, and Narcissa’s wand, too, flew into the air and landed on the other side of the room.