The Secrets of a Lady — Jenna Petersen

Audrey Jordan isn't your typical Regency lady. To escape unrequited feelings for her brother's best friend Griffin Berenger, she entered a life of a spy. But her current case has brought her back to the man she once loved and lost, a man who is now a broken widower. Audrey and her brother are stalking his neighbor, a man who may be plotting to kill the Prince. Staying in Griffin's home, Audrey is reminded of all the desires and feelings he once stirred in her. As for Griffin, he finds himself obsessed with Audrey, and driven to protect her even if it threatens her case. But as their desire for each other grows, the case Audrey and her brother are investigating heats up. And if she cannot arrest the blackguard in her sights, she may not live, let alone get to live happily ever after with the man of her dreams.