It's inconclusive, at the moment. Some elves would be offended at the idea of being related to humans. Science, at the moment, thinks that it's the other way around. That humans are a strange off-shoot of elves. Elves are taller and more distinctive looking than us. A very long time ago, their race split up to different parts of the world — forming different Houses. Governments, essentially, separate from humans.

[She doesn't mention the fact that elves used to hunt humans and keep them as slaves. That was a long time ago, even if the Elben Mahr and the Inveterates want to revive that way of thinking. She's going to stop them. That's all there is to it.]

Most elves get along with us very well, now. But no House looks exactly alike.