Darkness lurks in the shadows as a betrothed princess wrestles with a dangerous new magic that threatens her bond with her beloved horse--and a forbidden love for the enemy sworn to protect her.

Zara has never felt worthy of her title as First Daughter. Though next in line to lead her people, she hasn't inherited what matters most--her mother's sacred earth magic. While her people are tied to the land and their soul-bound horses, Zara has always felt a pull toward the wind.

As war rages against the enemy empire's deadly Eagle Riders, her people edge closer to defeat. When a rider attacks Zara herself, she unleashes a wind magic strong enough to tear giant eagles from the sky. This power could turn the tide of the war--but at a terrible price: the slow unraveling of her psychic bond with her horse.

So when a marriage treaty is offered in exchange for peace, Zara agrees, sacrificing herself to protect her people. But the emperor's palace is more treacherous than any battlefield. Hidden behind its gilded walls is a monstrous being long buried--and her power-hungry betrothed is determined to set it free.

Sworn to protect the future empress, Commander Talon soon realizes Zara is more than a political pawn--she's the key to stopping the emperor's dark ambitions. As their forbidden desire grows, they must face an ancient evil stirring beneath the throne. Even if it costs them everything.