The Moonstone

They were lost, disoriented because of the odd wind that had come out of nowhere. Finna took the moonstone out of her pocket and held it in her hand.  She watched in surprise as a tiny wavery line began to meander across the opaque surface. When she looked up Elena was watching her.  "It's a map, Finna, just one of the many magical properties of the stone. It will help us find the trail."