A disturbing letter from her great-aunts has brought Cheney Duvall to their indigo plantation outside of New Orleans, but what she and Shiloh Irons discover is much more serious and dangerous than they imagined. A West Indies cult has begun performing their rituals and rites on a high knoll just across the bayou from the plantation, and warnings are sent that La Maison des Chattes Bleues is on "spirit ground" and the aunts must leave...