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The Ringworld Engineers (1980)
by Larry Niven
Amazon.com Product Description (ISBN 0345334302, Mass Market Paperback)"This rousing sequel to the classic Ringworld continues the adventures of Louis Wu and Speaker-to-Animals on that fantastic planet."--School Library Journal An ALA Best Book for Young Adults
(retrieved from Amazon Mon, 30 Sep 2013 13:30:32 -0400)
To house the dying Earth's inhabitants, a huge architectural ring is constructed in outer space. With gravity, an atmosphere, and a temperate climate, Ringworld gives humanity a new lease on life, but not without frightening consequences.
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