To pave the way for galactic conquest, a united Earth had invented the robot Messiahs. These ingenious devices, dropped from space, created on each alien planet a new and convincing faith-----based on the future coming of the new men from Earth. Roy Inglis was a trouble--shooter for the "Earth Gods" operation and he was among the very few who knew that someday they would run into the synthetic equivalent of the Devil. There'd be another set of interplanetary...