Sixteen-year-old Megan is pregnant. As she prepares to tell her family, the unthinkable happens. Her village is razed by soldiers: her grandfather murdered, her twin sister taken. On a desperate mission to rescue her beloved Gwyneth, Megan discovers a terrifying truth - that the destruction of her old life is inextricably linked to her unborn child. The feared witch soldiers, vanquished a generation ago, have returned to see the fulfilment of a prophecy: one that will put Megan and her new friends - Eleanor, a fiery ex-aristocrat, and Damon, a wayward charmer - at the heart of the greatest war her world has ever known . . .