“Yeah,” Sarah agreed, though she had no idea what he was talking about. “But I’m trying to understand the races we do know about. Most of them make sense, but I’ve seen mentions of a few that don’t. From Equestrian history. The, uh… changelings is one. Apparently they attacked Equestria a few times? But no one really knows where they came from or where they went. But I want to know what they are.”