"We did," Jack laughs a little, "is it that obvious? I didn't for a while, found myself staying in one spot for a lot longer than I'd ever intended to. I was actually just about to go travelling again when I ended up here!"

Jack leads the way into a busy restaurant, picking a place that has more people going in and out of it, instead of something off the beaten path.

"I've been taking some notes of my own..." There's a blue journal waiting in a drawer at home that Jack has taken to writing letters to the Doctor in, just in case the man finally shows. "But I'd always be glad to see someone else's take on things."

"What about you? You used to travel, back home?"