The Reefs of Space: Billions - perhaps trillions - of worldlets circling the Sun far beyond Pluto. The last refuge of freedom in a solar system increasingly dominated by an all-inclusive computer program known as "the Plan of Man." Steve Ryeland, brilliant scientist, is a true believer in the Plan. When he is convicted of a crime he has no memory of committing, his sentence is to go back to work; to develop, for the Planners, a jetless space drive that will enable the tyranny to reach to the Reefs and beyond, to permanently crush individual human freedom!
