Romeo Heartbreaker and Candy Valentine have been frenemies since fifth grade—he’s been her tormentor, and she’s been his biggest headache. But when Candy’s love and Romeo’s best friend suddenly dies, sacrificing himself for them both, and the world begins to crumble in an apocalyptic storm, they’re forced to join forces. Together with the Starduster crew, they set out to save humanity from the sinister force hidden within the fog. Along the way, they uncover unexpected truths about each other, growing closer than ever as they face the ultimate battle for survival.