Summon the Seasons — Sandra Ulbrich Almazan

Kay might be the youngest, smallest, and least confident Season Avatar, but her weather magic makes her the most powerful of her group. Now that she also can contact the souls of dead Avatars, her quartet has a chance to end Chaos Season permanently. All Kay and her sister Avatars need are three more bones. To obtain them, Kay's quartet must travel across Challen, evading the King's Watch and Selathens who want to protect their demigoddess, Salth, creator of Chaos Season. Kay's deepest beliefs about her God and her longtime rival, Dorian, will be challenged during the trip. If she loses her faith and newfound courage, she will fail, and the rest of the Season Avatars with her.