Austen spinoffs are quite popular. I ran across this one today from Anna Elliot. I've read some of her other books and I LOVED Demon Hunter and Baby. Was a great UF read. I read Suzanna and the Spy and it was your fairly typical period piece romance. Not that it was bad, but it wasn't particularly believable either. Not that those things are meant to be, of course.
One of her Austen spins is free right now.
http://www.amazon.com/Georgiana-Darc...2886573&sr=1-2
Haven't read it, but she seems to have a few spinoffs from the collection. Don't ask me about order as I haven't read any of them and spinoffs of that nature aren't really my thing.