Slumping a little in relief at that, mostly because it'd make things a little simpler and safer for other people, Luke nodded.

"Okay," running a hand through his hair, Luke finally looked up again, "could it work like that? I mean, what happens when we go back?"

Because sooner or later they would, right? He certainly couldn't stay forever, even if time had frozen - in a way that seemed almost as bad as if it hadn't... Shaking his head, Luke frowned.

"What doesn't he know?" The most obvious possibility was one of the most unpleasant of course, but if he didn't know... Luke wasn't sure it'd be possible not to tell him.