The murder of Eleanor's brother leaves her the sole heir to the crown of Eswy, a pawn in the struggle for power between different religious and political alliances. With her father a prisoner, Eleanor flees her mother's schemes to marry her off to her cousin and finds herself hunted through the wilderness, facing treachery on all sides. Maurey, the hero of Nightwalker, and his friend, the Fen witch and warrior Korby, are summoned back from a mission overseas to find and protect the princess. Once a scullion and a fugitive, Maurey is now a young man of considerable status and power, a Nightwalker warlock in charge of his human brother's intelligence network. The mysterious symbol of the Yehillon seems to point to a conspiracy against both Dunmorra and the hidden Nightwalker kingdom of Talverdin, a conspiracy into which Eleanor has stumbled. While the two human kingdoms of the island are threatened with tyranny and Talverdin itself with annihilation, Maurey and Eleanor struggle to unravel the plots that threaten the princess's life and the peace of the three kingdoms.