Viscount Hatherton has never met anyone like Miss Poppy March. Exquisite, headstrong, and reckless, she's on a dangerous quest to expose the fiend she believes is poisoning her employer. She enlists his help, and Jacob is soon tasked with protecting her when he realizes her life is also under threat. The more time he spends with Poppy, the more he understands that she is what is missing in his life. She’s warmed the cold places in his heart, and brought him into the light. Can he keep her safe and convince her of his love when she is equally determined to keep them apart?