The New Year begins with a lady's intriguing proposition for Gavin Blackford though not the sort he's accustomed to. Alluring widow Ariadne Faucher requests private lessons from the rakish sword master in order to challenge her sworn enemy to a duel.

Though disinclined at first to teach a woman, Gavin is fascinated by this statuesque beauty, cloaked as she is in grief and mystery. Ariadne proves a quick study with a blade, her resolve fuelled by a vendetta that is all she has left in the world. Their lessons crackle with undeniable electricity but the secret of her all-consuming vengeance may have rendered her heart impervious even to such a virtuoso as Gavin.