Jake Cutter is reluctantly learning how to be a Necroscope - how to use the Mobius continuum to travel instantaneously from place to place, how to talk to the dead - but dead humans don't like him much. It seems Jake's got a hitchhiker named Korath. Since Korath holds the key to the Mobius equations, Jake can't just kick him out . . . though he's certainly trying. Jake's not sure he really wants to be a member of E-Branch, the supersecret ESP-powered...