And he's glad, so glad, that he didn't have to ask to be taken away. He's got enough to think about without feeling like a ponce as well. And when his room at Milliways comes back into view, he has to force himself not to sag with relief.

The ghost gets a glance, maybe two. It's hard to know how to talk to something that can't, or won't. But it seems wrong to just ignore it.

'We done then?'