My Deceitful Duchess by Aydra Richards

Wrongfully accused of the murder of her husband, Geneviève Amberley, the Duchess of Venbrough, buried her past before it could bury her. In the twelve years since, she has reinvented herself from runaway duchess into Jenny Laurent, the manager of an exclusive ladies’ club. No one is looking for a criminal in the woman she has become, and the murderous duchess is so far in the past that she might as well truly be dead and buried—or so she believes.

To Sebastian Knight, there is nothing quite so interesting as a mystery to be solved, and the woman who calls herself Jenny Laurent is the most fascinating mystery he has ever encountered. She is his latest obsession—an enigma so tantalizing, so alluring, that he cannot help but to make himself known to her.

An affair with the perceptive Mr. Knight is the last thing Jenny needs, but she finds herself charmed by his candor and his persistence—even if his unique talents make him the most dangerous man in all of England to a woman like her. He could very well burn her carefully constructed façade to ashes…and destroy her in the process.