Nothing else exists - at least that's what she's been told.Strong-willed teenager Leilani Grady is suffocating on her family's island. She wants off, but her parents say the rest of Earth is destroyed.When a stranger shows up, Leilani realizes her parents have fed her a life of lies.Ashyr Harmon shares a complicated history with her parents - and now he wants Leilani's help with saving his society. It's her chance to escape the only place she knows. But Leilani must decide who she trusts: her flesh and blood or this man who promises to fulfill her dream.