It's been 133 years since the Specters invaded Earth. Like ghosts they haunt the planet, devouring anyone foolish enough to venture outside the last remaining protected cities. For some, venturing out isn't a choice--it's a necessary evil to prove yourself to your clan as you come of age. But when a team of ambitious youth—New Adults—undertake a mission deep in Specter territory, they discover a terrible secret. Everything they've learned may be wrong ... and Earth is in grave danger.