In this stunning conclusion to the Ruinous Fate trilogy, romance, magic, and destiny abound as Calla and her friends face their ultimate test: The Fates’ War. Best friends Calla, Hannah, and Delphine have been dragged to the ends of the earth and back, with the threat of the Fates’ War always looming above them. But now the war—the one that will decide who lives, who dies, whose magic is preserved, and whose is scattered to the wind—is here. All the girls have something to lose. Calla has finally found her soulmate, but the mysterious reappearance of an old lover makes her question how to move forward—and whether or not a happy ending is in her reach. And while Delphine has finally fought her way back to her friends, the destruction she left in her wake might have bigger consequences than she expected—for everyone. And Hannah's past continues to haunt her—but when a long, unrequited love begins to blossom, will the darkness that swirls around her make her love wither on the vine, or will Hannah be strong enough to choose her fate? This thrilling and action-packed conclusion to the A Ruinous Fate series takes readers on a final, epic journey where lives will be lost, loves will be tested, and fates will be decided, forever.