"I'll deal with you later, dear nephew." Her words ran through his core and changed something in Draco. He set his mouth in a sneer and raised his wand for whatever spell that would get her away from Hermione. But before he could do so, he saw another arm raise beside him and then Potter disarmed his aunt from out of sight. Bellatrix shrieked and danced around the room as Potter kept firing spells after her through the gaping hole in the doors.