How far would you go for happily ever after? For as long as she can remember, Evangeline Fox has believed in true love and happy endings... until she learns that the love of her life will marry another. Desperate to stop the wedding and to heal her wounded heart, Evangeline strikes a deal with the charismatic but wicked Prince of Hearts. In exchange for his help, he asks for three kisses, to be given at the time and place of his choosing. But after Evangeline’s first promised kiss, she learns that bargaining with an immortal is a dangerous game—and that the Prince of Hearts wants far more from her than she’d pledged. He has plans for Evangeline, plans that will either end in the greatest happily ever after or the most exquisite tragedy...

Edinburgh, 1869: Modern-day homicide detective Mallory Atkinson is adjusting to her new life in Victorian Scotland. Her employers know she’s not housemaid Catriona Mitchell―even though Mallory is in Catriona’s body―and Mallory is now officially an undertaker’s assistant. Dr. Duncan Gray moonlights as a medical examiner, and their latest case hits close to home. Men are dropping dead from a powerful poison, and all signs point to the grieving widows… the latest of which is Gray’s oldest sister. Poison is said to be a woman’s weapon, though Mallory has to wonder if it’s as simple as that. But she must tread carefully. Every move the household makes is being watched, and who knows where the investigation will lead.