La Flamme — Constance O'Banyon

Wed at the King's command...
Lady Sabine Woodbridge pledged herself to a man she had never met -- the powerful Gareth Blackthorn, Duke of Balmarough. But that was before he betrayed her and her family.
Sworn to vengeance...
Escaping to France, Sabine became a sensual, provocative Parisian actress, known only as "La Flamme." Disguised in alluring mystery, she approached her husband, determined to draw from him the secrets that would destroy him. But as she grew closer to the seductive, compelling man she had once sworn to love, Sabine began to fear that in destroying Garreth, she would destroy herself.