"Again did you forget school? We had just about nothing under control. I guess I'm used to it." He shook his head. "I don't think that's true, though. We don't pull them from their lives. I apparently had a life wife children. Coming here didn't erase me. Maybe Hogwarts is creating two versions of us the one who lived through the past and we're some sort of copy. Who knows? The point is that they would have that life and this. Or something."
He shrugged. "It probably would have been better for the people they hexed, but if they were home, they might have been marked and they might have ended up in the same situation. Or worse, in Goyle's case."
Harry made a face at the names. "Parkinson wishes she had the brains or courage that Hermione has. She was ready to sell me out so that her pretty robes weren't ruined."