Working on completing her ecology graduate degree, Bernice is doing invasive species research in Cleary Swamp when she is confronted by a mysterious hag who says she is the swamp's caretaker. When Bernice discovers that the hag is actually a woman named Rebecca Hallett who disappeared in the swamp decades before she attempts to remove the strange old woman from Cleary Swamp, but little does Bernice know that Rebecca has a mystical bond to the area-one that possesses a human host and bonds them to it. One magical hallucinogenic powder cocktail and a space opera spirit journey later, Bernice's life has changed forever. The swamp wants her for its new caretaker, and it won't take no for an answer.