The Marquis At Midnight — Kate Harper

Widowed Grace Pemberton believes she has experienced all that life can offer in matters of the heart - until the night she dances with a handsome stranger at a masquerade ball... Her mystery man is perfect right up until the moment he removes his mask and Grace discovers she has made a terrible mistake. She had danced, and has been kissed, by the very devil himself, the Marquis of Morvyn. The man responsible for her husband's death...
A missing necklace, a friend in trouble and the dangerous machinations of a French spy complicate Grace's life even more. Can she withstand a man who seems destined to challenge her heart? Or will she succumb to the passion that threatens to overwhelm all of her good intentions?