Vega has lived in the valley her whole life—forbidden by her mother to leave the safety of its borders because of the unknown threats waiting for her in the wilds beyond. But after her mother dies, Vega begins to see stars falling from the sky. It’s an omen she can no longer ignore, forcing her to leave the protective boundaries of the valley. What Vega keeps to herself is that she is the Last Astronomer—a title carried from generation to generation—and she is the only one who carries the knowledge of the stars. Knowledge that could hold the key to the cure.