Everyone on Layna knows that another version of themselves could be living on Earth, the violent planet that has no proof of the afterlife. Weeks ago, sixteen-year-old best friends Faylin and Oz didn't think too much about that, spending idyllic days on Layna with friends at their religious private school and enjoying their secure community. But now, Oz has a secret: He's been mentally traveling between his lives on Earth and on Layna for reasons unknown to him. To complicate things, Faylin's Earth double is suspected of a crime, and anyone deemed "unstable" on either planet could pose a threat to peace on Layna—or so their government believes. As a once rose-colored future turns murky, Oz and Faylin must uncover the connections between their lives on Earth and Layna—connections that transcend space, time, and death—before it's too late.