When their brother who has been missing for fifteen years suddenly returns, changed, Evie and Kass Shao must cast aside their differences to hide him from the FBI and an entire alien army who are in fast pursuit. Fifteen years ago on a family camping trip, Evie and Kass Shao's father and brother vanished. Their dad turned up days later, dehydrated and confused-- convinced he'd been abducted by aliens. Their brother, Jakob, remained missing. Kass became the rock of the family. Evie traded academics to pursue alien conspiracy theories, always looking for Jakob. When Evie's UFO network uncovers a new event, she goes to investigate-- and discovers Jakob is back. He's older, stranger, and talking of an intergalactic war. Now the FBI is after Jakob. And if their brother is telling the truth, possibly an entire space armada, too.-- adapted from jacket