Planet of Adventure — Jack Vance

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 must find a way off planet to warn the Earth of Tschai's deadly existence.

Against a backdrop of baroque cities and haunted wastelands, sumptuous palaces and riotous inns, Reith will encounter deadly wastrels and murderous aliens, dastardly villains and conniving scoundrels.

And always the random beauty in need of rescue...