Stranded on the distant planet Tschai, young adam reith is the sole survivor of a space mission who discovers the world is inhabited--not only by warring alien cultures, but human slaves as well, taken early In Earth's h...Stranded on the distant planet Tschai, young adam reith is the sole survivor of a space mission who discovers the world is inhabited--not only by warring alien cultures, but human slaves as well, taken early In Earth's history. Reith find a way off planet to warn the Earth Of Tschai's deadly existence.