In a world of shape-shifting monsters, who can be trusted?

Despite the prophecy that changed her life forever, former gravedigger Rigan North has found love with the man of her dreams. But a peaceful future isn't yet within reach. Hunted by two rival kings and sought by Jardians and Calidorians alike as the symbol of a new rebellion, Rigan struggles to find her place, increasingly drawn to the Shro Khan's siren song. How will her child save the world if Rigan cannot resist the monsters' call?

Leagues away, Isel has grown up in a sheltered monastery as the daughter of a monk. All she desires is to live an ordinary life with her books, but her uncanny resemblance to the so-called Reign Breaker and her unusual ability to detect the Shro Khan's presence tears her from her home and thrusts her into a world of intrigue, power struggles, and deadly secrets. Kept captive by Jardia's king, her only true ally is melancholy, wheelchair-bound Crown Prince Soren, the Reign Breaker's brother-in-law and a brilliant, dangerous man. But Soren's destiny is not his own, either, and with ambiguous prophecies linking his name to hers, the path to save the Twin Kingdoms may forever diverge from the path that sets Isel free.