Lunette Marsden is a gifted healer but falling for a spy could leave her with a broken heart. The Earl of Densmore and his younger brother, Mr. Denham, are guests of Selbourne Castle for a house party honoring Luna and her sisters. But the brothers are up to something mysterious. When Luna discovers the earl is injured, she insists on treating his wound. She secretly tends to him in his room masking her attraction to him as best as she can...