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Over half a million years ago, 248 light-years form Earth, an unimaginably advanced civilization built itself a new home. A ring a million miles high, the new habitat stretched in a vast 600-million-mile circle around stable sun-type star. Its 600 trillion square miles of surface area were the equivalent of three million Earths, and centrifugal force provided its gravity. Now, at long last, Nebula and Hugo Award winner Larry Niven returns to his most famous creation--Ringworld
"Niven's work has been an intriguing and consistent universe, and this book is the keystone of the arch. . . . [His] technique is wonderfully polished, his characters and their situations are nicely drawn . . . wraps up (maybe) a corner of a very interesting universe."
--San Diego Union-Tribune