John clenched his teeth behind a relaxed mouth, determined to keep himself vaguely in check. Funny what you'd do when you felt the Doctor had handed off a job to you.

"You'll be fine, Wings." He offered her one of his smiles, the kind that meant much more than any simple smile should. "Just be careful. For all of us."

She was one of the first people he had met here. He just wouldn't be able to fully comprehend something going wrong.