A trip to New Orleans to purchase The Evil Eye, a rare voodoo artifact, results in the Voodoo Museum's curator being turned into a zombie by a High Priestess who attempts to prevent the sale from going through. When Rip is denied his purchase, the BION team follows the hypnotized curator to the infamous St. Louis Cemetery, where amidst the gravestones and fog, Cyril goes missing! Rip and Sam discover the fight between the Curator and the High Priestess is a case of sibling rivalry, and track them to a shack deep in the swamps of the Bayou. When the High Priestess uses the power of the Evil Eye to seemingly prevent an alligator from eating her brother, Rip decides, the artifact belongs with New Orleans' first Family of Voodoo.