Philip Jose Farmer 
Night of Light 

Join John Carmody of Earth on an unforgettable adventure on the weirdest planet in the galaxy. Just when Carmody had given up understanding this weird world and decided simply to accept whatever happened, it was the Night of Light. All the citizens of Dante’s Joy slumbered on that night – to awake, if at all, in a world even more bizarre and more unearthly than before…