"Yeah I know who River is," Jack said somewhat exasperatedly. He knew her, yes, though mostly not from what the Doctor had said but from his encounters with her a long time ago And really, she was a woman he needed to be in the right sort of mood to talk about. He suspected the Doctor, in his way, felt the same.

He watched the Doctor, and moved a step over to look at the item he pulled from his pocket. He felt a silent pang of jealousy. He knew the Doctor kept his cufflinks, how many other people's keepsakes did he have?

"Guess you do know her then," he said. "Your call. You want to go back, or stay?"