Freed from the clutches of her cruel, traitorous mother and impostor husband, Lady Camden wants to rebuild her fractured life. But the years of terror and pain she endured at their hands continue to grip her heart in an iron vice. Refusing to stray from the refuge of her country estate, Kate tentatively agrees to an unusual alliance with the new Lord Camden, being mindful to keep her trust, and her heart, firmly safeguarded.

Adrien, Earl of Camden, had lost everything he held dear while working undercover in France as an agent of the Crown, known only as Hawk. Now an earl, he wants only to repair his tattered, lonely life. His efforts are interrupted, however, when he is called to accept another assignment: Stop French spies from passing a bill in Parliament that will eliminate British aid in the war against Napoleon.

When Kate's past pulls her into a web of treachery and deceit, a life she is wholly unprepared for, Adrien must use any means necessary to stop the French spies from succeeding in their evil designs and keep her safe. When the truth is finally revealed, will Lady Camden be strong enough to seize her own future and happiness, or will her heart be too shattered to ever love a spy?