Heart of Frost by Skyler Andra

A banished queen’s powers will be their salvation and ruin.

Captive of the Sultan, Zeyna’s power, beauty and rarity as a winter witch, earn her place among his collection. Craving freedom, she escapes the draining desert heat, and returns to her ancestral home. Only the sultan isn’t going to let go of his most prized possession so easily.
Frostborne is cursed, the snow melts, crops dwindle, and leaps starve. Desperate to save his realm, Hunter, believes Zeyna to be their salvation, and enchants her with a dark persuasive power to perform his bidding. But soon he’ll be forced to choose between saving his people and her liberty.