Medieval history scholar Isabella is catapulted into 1187 Aetherland, a war-torn kingdom on the edge of collapse. Mistaken for a spy, she saves a dying soldier with forbidden modern first-aid, catching the eye of brooding, disgraced Prince Edmund. Trapped in his crumbling border fortress, Isabella uses her wits to craft disinfectants, revolutionize blacksmithing, and outmaneuver foes—all while navigating Edmund’s icy distrust and a forbidden connection. As ruthless crown prince Sebastian closes in, she becomes his most trusted strategist. Together, they must rewrite a tragic history… before Aetherland’s light is snuffed out forever.