In the tranquil town of Bernouse, NH, Griffin Tucker and Sarah Avery’s engagement celebration takes an unexpected turn into the realm of the extraordinary. On the day they plan to share their future, Griffin learns that his mother, Cerise, is not only battling a terminal illness but concealing her true nature as a godlike entity from another world.
Alongside her ancient and sinister companion, August Vasilias, Cerise had once confined a monstrous entity, the Herald of the Void, within the moon's core. Now, with their powers dwindling on a magic-starved Earth, the Herald's strength grows, threatening imminent destruction.