"That's good. That's very good." The chair landed with a bang against the floor as the Doctor tipped forward again. "Are you sure you could do it?" His expression was earnest but worried. "You can get in and get out without the Master knowing you were ever present? I don't want to risk you, Leela, but that may be the best solution anyone's put forward yet, and I'm not sure I know of anyone else who might be able to pull it off."