Ray Bradbury 
The Creatures That Time Forgot (With a Biographical Introduction) [EPUB ebook] 

After a ferocious battle in the sky, a flock of spaceships is stranded into a mad and impossible world. The survivors of the wreckage will have to live in a planet sun-blasted by day, cold-wracked by night, and their life condensed by radiation into eight days. One of them, Sim dreams of returning to the ship, maybe the last hope for salvation from this nightmare. But it is so distant that maybe the life he’s got is too short to reach it…