Things put underground in New Orleans don't often stay there. Even things that should - like bodies, and secrets. How do you fight an enemy you can't see that can kill on a whim? In 1820s New Orleans, on the eve of her twenty-first birthday, Zéolie Cheval discovers the mangled body of her father murdered in his bed and a maniacal voice haunting the recesses of her mind. When the priest sent to comfort her is killed while the house is swarming with police, Zéolie becomes entangled in a web of mystery that takes her from the French Quarter, to the Ursuline Convent in the Ninth Ward, and deep into the Louisiana swamps. Officer Louis Saucier, who is losing his heart to Zéolie and his grip on logical reality, helps her find the pieces to her puzzle. The mother superior of the Ursulines offers assistance from a mediumistic nun and a voodoo priestess, blurring the lines between the spiritual and the supernatural. After opening the family crypt to find it uninhabited, Zéolie realizes that her father lied about her mother's death - amongst other things. Now, Zéolie must to come to terms with magic she inherited from her grandmother and the price that comes with it. Step inside the magic and mystery of the 1820s French Quarter to see if an unlikely menagerie can help Zéolie take down a murderous maniac while she shields the officer she loves. Can she harness powers she didn't know she had? Or, will she make the ultimate sacrifice?