Tears of Frost by Bree Barton

Mia Rose is back from the dead. Her memories are hazy, her body numb—but she won’t stop searching. Her only hope to save the boy she loves and the sister who destroyed her is to find the mother she can never forgive. Pilar is on a hunt of her own. Betrayed by her mother, and plagued by a painful secret, she’s determined to seek out the only person who can exact revenge. All goes according to plan… until she collides with Prince Quin, the boy whose sister she killed.

As Mia, Pilar, and Quin forge dangerous new alliances, they are bewitched by the snow kingdom’s promise of freedom and opportunity. But with the winter solstice drawing near, they must confront the truth beneath the glimmering ice, as lines between friend, foe, and lover vanish like snowflakes on a flame.