In the 7th and penultimate novel of Dianne Sylvan's Shadow World series, the foundation of Miranda Grey's life has once again shifted, and with it, the future of vampire kind. Instead of the traditional Pairing of Signets ruling a single territory, she is now part of a Tetrad that essentially rules half the planet. As they race to save innocents in the path of the Prophet's army of possessed humans, Miranda, David, Deven, and Nico find themselves in new roles, wielding new power that invites new dangers. Together with two other Pairs, the Tetrad finally steps into the Circle of the Dark Goddess Persephone, and the eight Signets learn their true purpose...along with their enemy's true identity...and his endgame. But while the Circle learns to navigate its new reality, Miranda and her family come up against a frightening truth: The greatest threat to their world may come from within...and even the power of a Goddess may not be enough to save them all.