I nominate
Sorcerer to the Crown by Zen Cho, a fantasy set in Regency England.
One of the better fantasy books I've read lately. The author describes it as Georgette Heyer with magic and a dash of humor, but it's not a romance. I think it may get some attention during award season next year.
Apparently it's first in a series but the book wraps everything up pretty neatly. Any sequel would have to be another adventure.
371 pages.
Goodreads
And the first chapter:
http://www.npr.org/books/titles/4366...-crown#excerpt