(8vo), cloth and boards, illustrated dust jackets. First Editions. Includes:
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The Fabulous Riverboat. First UK Edition. London: Rapp+Whiting/Andre Deutsch, 1974.
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The Dark Design. First Edition. New York: Berkley Publishing/G. P. Putnam, 1977.
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Gods of Riverworld. First Trade Edition. New York: G. P. Putnam's Sons, 1983.
All volumes signed by Farmer on the title page. Three titles from the popular Riverworld series.
Riverworld is an artificial "Super-Earth" environment where all humans (and pre-humans) are reconstructed. The books explore interactions of individuals from many different cultures and time periods. Its underlying theme is quasi-religious, and the motivations of alien intelligences operating under ultra-ethical motives are explored.