Foster, Alan Dean
Book Condition Fine in a lightly age-toned and mildly edgeworn illustrated dust jacket with artwork by Esteban Maroto.
Edition Book club edition: issued by the Science Fiction Book Club; with the code M13 on page 218; jacket code, 3998.
Publisher New York: Ballantine Books/A Del Rey Book, (1980).
Seller ID 37382.01
Novel of an ocean world with whale-like aliens, identified by Clute and Nicholls as one of Foster's more interesting stand-alones.