You’d think John would get used to meeting people from the past - or, for that matter, people from stories, people who are supposed to be dead or who never existed - but he still finds it to be a bit of a shock. And this one looks so weirdly like Lestrade, which isn’t really helping.

And if John’s confused by it all, how must the poor kid be feeling?

“…Huh. This must be… well, a hell of an adjustment, for one thing. You hanging in there?"