Adventure science-fiction in the best of the old-time tradition. One-legged Borden Karvel is shuttled into the future to try to discover the origin of Force X... a whirlpool of terror with a time machine at its vortex. The mystery of a D.O.A. non-human passenger is eventually cleared up after Karvel clashes with some future totalitarian state governments only to discover that he has been traveling in the wrong direction. Not classic but fun.