The action and adventure reminiscent of Percy Jackson meet the complexities of heroines akin to The Cruel Prince as a family of valkyries battles to prevent Ragnarok. For seventeen-year-old Bryn, navigating life as the youngest, messiest, and most rebellious sister in a valkyrie family isn't easy, particularly when home is a Renaissance faire in Chicago where costumed workers view her as a mere nuisance. When her mother vanishes on a mission for Odin, Bryn begins experiencing strange visions of the impending Ragnarok. Despite her warnings, her impeccably perfect older sisters dismiss her concerns, citing their mother's position as captain of the valkyries. Matters escalate when Juniper, a half-human, half-giant, arrives with a violent zombie, confirming Bryn's fears about Ragnarok. Complicating matters further, the faire welcomes Wyatt the Black Knight, whose enigmatic secret poses a threat to everyone. Determined to survive Ragnarok, Bryn, Juniper, and Wyatt join forces to combat the onslaught of monsters plaguing the faire. However, when Bryn chooses to save Wyatt's life rather than deliver him to Odin's eternal warriors in Valhalla, she questions her ability to fulfill her valkyrie duties. As whispers of divine prophecy swirl around them, Bryn grapples with her destiny and the choices that will shape her future.