Not too much, other than that most people don't seem very bothered by the fact that this is a prison.
[Which actually, he kind of understands, since it doesn't seem to be much of a prison at all, but it seems strange that there's not more moral outrage. And certainly as a totally innocent and upstanding citizen he ought to feel some moral outrage, probably.]
But, [he adds, leaning in and looking off toward the bar with a flicker of feigned uncertainty,] I think some of these people are actually drinking blood. I thought it was just, you know, part of the decoration, but I'm not so sure.