Lady Anne Fitzroy, daughter of an ambassador to the Austrian court, returns to England after her father is murdered. Soon, rumors circulate that he committed an act of treason leading to the deaths of thousands of Austrian soldiers. Well known for her close assistance to her father, Anne is pressed by more than one zealot to divulge what she knows about his supposedly traitorous designs. One of these men is Nicholas Beckett, the Earl of de Rothesay, who holds Anne's father responsible for the betrayal of his brother to the French as a spy. Lord de Rothesay's fierce effort to prove Anne's father's guilt is matched only by her passionate determination to prove her father's innocence. De Rothesay's prejudice draws her deep resentment and catapults them into a scrimmage of accusation and mistrust. But eventually, with Anne facing charges as an accomplice to treason, she and de Rothesay must join forces in a pact to uncover the truth about her father. Their joint search carries them into the arms of danger and into a change of heart toward each other that neither dared imagine. Can Anne's enemy become so much more than her friend?