With the witch queen using the deadly plague to unite the nation of Sabor against Crows - and add numbers to her monstrous army - Fie and her band are forced to go into hiding, leaving the country to be ravaged by the plague.

However, they're all running out of time before the Crows starve in exile and Sabor is lost forever. To survive, Fie must unravel not only Rhusana's plot, but uncover ancient secrets of the Crows - secrets that could save her people, or set the world ablaze.