For a ticket to Earth, 17-year-old Anna-Maria "Ann" Solano is ready to jettison her birth planet, best friend, and the boy who loves her. Her mission is easy: escort Dace Keeling, a young naturalist, through the wilderness of the partially terraformed planet Eco. Ann's determination to escape the limitations of her small, frontier colony never falters, until Dace's expeditions uncover three secrets. One offers riches, one shatters Ann's perceptions of herself, and one reveals that the humans stranded on Eco are not its only inhabitants. This is the story of a girl who must choose between fulfilling the dream that has always sustained her or save the planet she's never considered home.