Jack and Fleur risked their lives—and their immortality—to escape the crushing system that pitted Seasons against one another, and prevented them from being together. Their victory cost Jack his magic as a Winter, but it led to the overthrow of the former Chronos and put in place a new, more humane future for the rest of the Seasons. Now, Jack and Fleur can be together in peace. Not everyone is happy with the new leadership. Doug Lausks, a former member of Chronos’s Guard, watched his best friend die at Fleur’s hand in the final battle. And he won’t rest until he’s gotten vengeance. When Fleur is kidnapped and brought back to the Observatory, Jack must partner with an unlikely ally to save her, the Observatory, and the world from the chaos Doug has wrought. But to do so, Jack and Fleur must make yet another impossible choice—do they give up their lives together to save everyone else?