Sky has always felt trapped in the concrete walls of the world she's grown up in. All the order and strict rules have always made her feel caged, unlike those around her who love the simplicity of their controlled routines. She has always felt like she doesn't belong, like she was meant to be some where else, and the tragic accident that was responsible for her parents death has left her with even more questions about herself and her name throughout her life, which no one knows the meaning of. When a citizen mysteriously disappears from their concrete world, the question of whether there is a world outside of theirs comes into question. The Council and everyone around Sky tells her that there is no such thing, and that all the stories are just legends, but she refuses to believe them. The possibility of a world away from hers excites her, and she dwells on the thought of escaping her home, the only place she's every known. But exploring the possibility of another world could lead to her death, and as she searches on for information to prove her theory about an exit, she realizes there a more secrets about herself and her family that she could ever imagine. Will she take a chance and pursue this world that might not even exist, or will she stay where she wishes she belonged with those she loves?