Book: The Bone Witch (The Bone Witch book #1) by Rin Chupeco
The beast raged; it punctured the air with its spite. But the girl was fiercer.
Tea is different from the other witches in her family. Her gift for necromancy makes her a bone witch, who are feared and ostracized in the kingdom. For theirs is a powerful, elemental magic that can reach beyond the boundaries of the living -- and of the human.
Great power comes at a price, forcing Tea to leave her homeland to train under the guidance of an older, wiser bone witch. There, Tea puts all of her energy into becoming an asha, learning to control her elemental magic and those beasts who will submit by no other force. And Tea must be strong -- stronger than she even believes possible. Because war is brewing in the eight kingdoms, war that will threaten the sovereignty of her homeland...and threaten the very survival of those she loves.