Frostblood Frostblood Saga, Book 1.

Book 1 of the New York Times bestselling series, perfect for fans of Red Queen . An "enchanting and fast-paced debut" that "lights up the page with magic, romance, and action." Seventeen-year-old Ruby is a Fireblood who has concealed her powers of heat and flame from the cruel Frostblood ruling class her entire life. But when her mother is killed trying to protect her, and rebel Frostbloods demand her help to overthrow their bloodthirsty ki...