Random, New York, 1994, reprint.  ISBN 0-679-40356-6.  Hard cover, 324 pages.  Green boards with white cloth spine that shows a bit of soil; binding sound with headbands; bit of edge wear, spine ends bumped, some corner wear with scrape to upper front corner; a bit of sunning along lower board edges and age spotting on spine; faded remainder dot on top page block.  Dust jacket with price intact shows some edge wear, impressions and rubs; loss at upper front corner.  Book interior clean and unmarked; pages white; bookplate signed by author affixed to front end paper.  ‘At a small marine institute off the coast of Connecticut, a young marine biologist, Simon Chase, studies and tracks … a vast array of other marine species, as well as the effects of pollution and other threats to the ocean’s environment.  With his young son, he begins to notice strange behavior among the creatures of the sea; something in the ocean is throwing off the balance of nature.  Then the body of a diver washes ashore.  When more victims are discovered, Chase realizes that while the killer resembles a white shark, it is far more dangerous and malevolent than any shark he has encountered before.’ (from front flap)