Excellent characterization and well-crafted tension do much to redeem the outlandish plot of this SF thriller from Crouch (the Wayward Pines trilogy). Jason Dessen, a quantum physicist, once had a brilliant research career ahead of him. But after a girlfriend?s unexpected pregnancy and the birth of a son, this future was derailed. Now Jason is a professor at a small Chicago college, content with his warm and loving family life until he?s abducted into a world in which his quantum many-worlds theory has become a fully realized technology for inter-dimensional transfer. In this world, Jason didn?t marry his girlfriend and never had a son. Jason is determined to get back to his family and his own world, but nefarious powers in the alternate reality conspire to stop him from revealing the criminal lengths they have gone to create the world-hopping technology. Crouch makes little attempt to justify the underlying science fiction MacGuffin, but a rousing and heartfelt ending will leave readers cheering.