When an enigmatic author comes to untrained witch Fiona DuBois with an unexpected request, her life as a bookstore owner is forever changed. As preparations for a book signing take a sinister turn, Fiona is confronted by malicious pursuers, cryptic family connections, and a supernatural mystery with roots that run deeper than she could have ever imagined. In the depths of the Black Bayou, can Fiona discover the connections in time to find her true power - and survive unscathed?