Queen of the Skour by K.E. Barron (Paperback)

Zephira, Princess of Del'Cabria, was handed over to the Overlord of Herran in return for peace. Now he's gone, and she's unaccounted for. 

Jeth has gotten away with murder. But when Del'Cabrian soldiers threaten his people, he gives up his freedom for their lives. He is sure to get the noose, but as the only one who knew the Overlord's plans, he might be too valuable to hang. 

Vidya is hungry for revenge and ready to see her plan through. Step one: Punish the sirens who betrayed her. Step two: Destroy the one man who deserves the Harpy's wrath above all others. Her husband. 

The missing princess will bring their paths together. One will risk all to find her, the other will stop at nothing to capture her. Neither are prepared to face the Immortal Serpent's final secret.