The illegitimate daughter of the Russian czar, Leonida arrives at the estate of Stefan, the Duke of Huntley, with secrets.and a mission. Searching for covert documents sequestered in Stefan's massive library, she is the perfect guest - and the perfect spy.

Fascinated by her flawless beauty and her intriguing air of mystery, Stefan draws intimately closer.and Leonida, bound by duty to her family and country, finds herself utterly captivated. Yet as danger and desire meet in a tangled web of espionage and deceit, the two will face a choice that can be made only by love itself.