Trav Becker is a police detective with multiple lives. Or to be more accurate, he's a police detective who knows that multiple versions of himself live in countless different streams of existence. When another Trav Becker appears bleeding and dying at his front door, Trav quickly realizes that something is dreadfully wrong in the multiverse. Pursued by an FBI profiler who believes (with some justification) that Trav is hiding something, the detective races to save two kidnapped girls while also trying to sort out why those multiple versions of himself keep turning up dead. Dennis Green returns to the universe he created in "Traveler" for another mind-bending thriller. "Prisoner packs one helluva punch... time and time again " - RACHEL AUKES, Amazon bestselling author of 100 Days in Deadland. "A gripping, dimension-hopping mystery that absolutely refuses to be put down." - ADAM WHITALACH, author of The Weller and War of the Worlds: Goliath. "Green takes a mystery, colors it with an urban fantasy ambiance, teases it with sci-fi, and adds a spritz of romance for a perfectly styled read." - A.R. MILLER, author of Disenchanted.