Because of its six suns, the planet Kalgash is bathed in perpetual sunlight. However, once every 2,049 years all six suns are eclipsed, plunging the planet into total darkness and causing widespread madness that results in the civilization's complete destruction, thus allowing the cycle to begin again. Night fall , expanded from Asimov's 1941 award-winning short story, lets readers experience the cataclysmic event through the eyes and biases of a newspaperman, an astronomer, an archaeologist, a psychologist, and a religious fanatic. This novel improves upon the original through the use of better developed characters and an expanded, more textured story that results in an absorbing, richer tale.