The East Witch — Cedar Sanderson

Anna's rescue training kicked in when she tripped over the injured elf. Getting him home? No problem. Getting herself home again? That's going to be a little more complicated. Trapped Underhill, in the land of the fae, Anna has to remember everything she knows about fairy tales. Not the sweet happy ones: the stories where Baba Yaga boils you alive and giants grind your bones for bread. Her skills as a hunter and her good manners might be all that keep her alive. At least, if she can keep the Wild Hunt at bay!