Reminded me a bit of the Pink Carnation series by Lauren Willig, just less humorous. Loved the time period and the inclusion of the war in Spain and Napoleonic issues. Very easy to read, and definitely a bit dramatic with excellent twists and reveals, which always conveniently occurred at the end of a chapter. Great emotional depth in the characters, and good tension. Didn't know it was the eleventh book in a series, might need to read more.