Russell Hoban 
Fremder 

”Recalls Orwell”s 1984 and Wells”s The Time Machine … a revelation” Guardian
On 4 November 2052, Fremder Gorn is discovered drifting in deep space. He has no spacesuit, no helmet, no oxygen, but he is still alive: the sole survivor from the mysteriously vanished ship Clever Daughter. How did he get here? To find out, Fremder must search through memory, dream and the unknowable fragments of his own mind.
”A wildly imaginative piece of science fiction” The Times
”Unputdownable, moving, ingenious … it will remain in my head with troubling images and scenes for a long time” A. N. Wilson, Evening Standard