You could say that about an awful lot of decisions...

[ Simple can be an illusion sometimes, just like, well, not quite like everything around them. That's all real enough, even if it won't be again once they pass by. The staircase has Childermass looking curiously up, trying to catch a glimpse of what it might lead to.

No luck. ]

I'd hope folks like that would have to sense to stay back. [ Though they probably don't. ] What do you think that leads to?