After successfully retrieving the body of Mose Freeman, Alabaster Graves and Mose's great-granddaughter Marissa Freeman are headed back to New Orleans to give the renowned witch doctor a proper burial. Unfortunately for them, the undead patchwork necromancer Uriah Fallow is hot on their trail and he's after Mose's most protected secret. When Fallow captures Marissa, it's up to Graves to get her back, and the only ally he's got is the mysterious magic of Grandma Hattie. But what is Mose's secret, and how will Graves rescue Marissa?