"William," Pete said carefully. He paused, started, paused again, and then said, "William, you came here via the roof. You could consider just staying. And making sure none of the children get a mind to go out there."
He pulled his wand out and then, thinking better of it, shoved it back into his pocket and hugged William fiercely. "And if we die horribly, I want you to know I'm sorry. About last week."