Jack straightened slightly. He should go. He really should. Not only might there be timelines to consider (and who knew what his being here had already done to those) but there were other things too.

"This was just supposed to be a trip," he said, insistently speaking his thoughts allowed. "Just a little trip. I wasn't going to get involved. There wasn't supposed to be..."

He trailed off and shook his head. How could he have spent so long looking for the Doctor and now when he was effectively trying to hide... he couldn't.

The Doctor.

But which Doctor?

He really needed to know. How much potential damage was he doing just by being here?

"What does he look like?" Jack asked, sudden. "I know it might sound like a strange question but please, answer me."