Sixteen-year-old half-alien Sydney Chambers leaves Earth to seek his long-missing father, and unearths a devastating, centuries-old secret about humanity. Syd Chambers knows that there's life on other planets because he's descended from it. His father was from a distant world called Denza and has been missing-- presumed dead-- for years. When Syd discovers a device his father left behind which shows not only that he's alive, but where he is, Syd must set out on a mission of his own. Along the way he discovers a deadly, unbearable secret that could destroy Denza, Earth, and the universe. -- adapted from jacket