There had been no time to wonder at how it had happened. She had found a Portkey tucked inside the pocket of the guard at the main door, took it, and found herself a short distance behind Draco, frozen in horror as she saw the final seconds of his duel against Harry, when Harry had been too exhausted and preoccupied with blocking a barrage of curses to avoid the jet of green light that had come from the side and struck him in the head. 