Black eyes flickered rapidly along the lines of print. As he read, he looked profoundly unconvinced. "I've seen Potter get out of some ridiculously tight situations before. I'd have to confirm it with Lupin or another werewolf, but I believe it's possible Riddle's werewolves could have tracked Potter's scent back to the tunnel: if that's what happened, it's possible Potter might not have been captured. He might be in hiding, as he was in 1998."