1507690
9780671721534
Hard SF by the author of Rocheworld and his daughter. When the first interstellar expedition reached Barnard's Star, explorers found a bizarre double planet populated by hyperintelligent water-dwellers. Soon a new aquatic race is discovered--intelligent but unfriendly beings whose territorial instincts make them attack any creature that intrudes on their domain.Forward, Robert L. is the author of 'Return to Rocheworld' with ISBN 9780671721534 and ISBN 0671721534.
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