"She tried," said Harry. "She threw her best spells at me, but my natural defensive magic and my rage became like a shield that deflected them all. It was a hell of a fight. The result was that she stopped attacking me directly ... and cast a spell that ripped the tower in two. The roof crushed my legs and I passed out from the pain, but not before I had a moment of clarity ... and forced an Apparition on Enola wandlessly ... to get her out of there before she was hurt. I didn't know I'd already undermined the tower's foundations, or maybe my wandless burst finished the job. The rest came down on top of me, but the roof shelf ended up saving my life."