 I have no idea. So, as always, I fail these every time. I'm thinking it might have something to do with spying. You know, people on the roof. All right. Middle Ages, castles, that kind of stuff. All right. Let's see how far off I am, too. Oh, gee. And I really do not read these things in advance. In medieval times, houses didn't have roof gutters to carry off rainwater.