The Doctor stopped dead in his tracks. Everything left over from the moment, his inhibitions and his worries, were gone. Instead they were replaced by the same mix of emotions that always came with trouble. It was dangerous. A thrill. And he even had someone with him to help.

"Now that sounds like trouble," he said. He was already at Martha's side and there was a familiar look in his eyes, his hand itching to grab her's. "They might need a doctor." The word was given emphasis and a slight grin flickered over his face. "C'mon!"