The rule

Author: Isaac Asimov Number of pages: 346 For more than twelve thousand years, the Galactic Empire ruled the entire galaxy, millions of inhabited planets from the heart of the galaxy, the capital Trantor, to the outer edge of the galaxy. A single world called Hari Seldon uses the science of psychohistory to predict the future, to see the decline of the Galactic Empire, and eras of darkness, barbarism, and ignorance will last for thirty thousand years following the collapse of the Empire. To preserve human sciences and reduce the barbaric period to only a thousand years, Hari Seldon gathers the best minds of the galaxy to establish a base on a desolate planet at the far end of the galaxy, the planet Terminus. Soon, the base finds itself surrounded by enemies greater than its capacity to confront, barbaric kingdoms that have split from the Galactic Empire, and behind them dangers and crises threaten the base and Hari Seldon’s plan for the future of humanity.