Questioner
Was the Rose Empire ever under threat from Shu-Dereth? And can you speak a little bit on fitting The Emperor's Soul into a world you'd already created?
Brandon Sanderson
So was the Rose Empire ever in danger from Shu-Dereth and could I speak a little about fitting The Emperor's Soul into a world I'd already written. So when I designed Elantris, I knew where I was going, and I knew a lot about the world. This is how I am in building. So when I wanted to do The Emperor's Soul I already knew where I was going to place it, I knew which magic system I was working toward, and things like that. So it wasn't terribly hard since I already knew what was over there.
The fun about that is that you should go look at the map commissioned, the one Isaac drew, that's done by the Derethi and see how they view the Rose Empire and where they put it on their map. And then you'll eventually get a map of the whole world, and let's just say they don't have a really accurate representation of the world and their place in it. As was very common for a lot of early societies, early European maps are hilarious.