Disinherited by her stepbrother because she refuses to marry as he wishes, Lady Adel Fitzhugh needs a miracle. When a storm drives a coach of travelers to their door, her miracle arrives in the form of Captain Liam O'Shea.  Captain O'Shea is taking his motherless young daughter to live with the nuns during his five-year deployment to India. Adel seizes the opportunity to begin a new life, offering her services as governess.

Liam accepts Adel's offer on the condition she raise the child at his family estate in Ireland. Fearing that if he dies in battle his daughter will be at the mercy of profiteers, he also proposes a marriage of convenience. If he returns, Adel will be free to file for an annulment and return to England. She agrees but has no idea the task will require all her strength and determination once she reaches his ruined castle and becomes "the O'Shea" to his people. And what if she wants to stay?