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Ringworld's children originally published by Tor in 2004. Fleet of worlds originally published by Tor in 2007.

A brand-new novel set in Niven's Known Space, two hundred years before the discovery of the Ringworld.

Welcome to a world like no other. The Ringworld: a landmark engineering achievement, a flat band 3 million times the surface area of Earth, encircling a distant

For decades, the spacefaring species of Known Space have battled over the largest artifactNand grandest prizeNin the galaxy: the all-but-limitless resources and

A new look at Niven's Known Space, two hundred years before the discovery of the Ringworld