At the knock on her door, Katie craned her head back, obviously confused. Who on earth was that? Dislodging Quaffle, who grumbled, gave a woof, and then settled again, Katie padded barefoot over to the door and pulled it open. "Charlie?" She'd started to smile almost automatically before she caught sight of the expression on his face, and her own smile faltered. "What's wrong? Is everything okay?"