Edgar Rice Burroughs 
Beyond the Farthest Star [EPUB ebook] 

On Poloda, a world far beyond the reach of any telescope on Earth, there appeared a mysterious being. The inhabitants called him Tangor — ‘from nothing’ — and enlisted him in their savage warfare. And Tangor, the Earthman so strangely transported to a remote planet, took part in one thrilling adventure after another in the battles which were so like, yet unlike, those of his own twentieth century.