After High Priestess in training Zoey Redbird and her gang have banished Kalona and Neferet from Tulsa, she is looking for a break. But when the dark force lurking in the tunnels under the Tulsa Depot is spreading, Zoey begins to believe that her best friend, Stevie Rae, could be responsible for a lot more than a group of misfit red fledglings and questions how much she can trust her. After visions warning her to stay away from Kalona and his dark allure, Zoey is also shown that she has the power to stop the evil immortal. Zoey must decide whether to risk everything in order to keep Kalona from a fiery vengeance on those closest to her.