Recommended reading - Jaws, by Peter Benchley (1974):

Jaws

by Peter Benchley.
 
Published by Ballantine Books.
First published 1974.
Paperback.
 
ISBN-10: 0345544145
ISBN-13: 978-0345544148
 
Description from the original hardcover inner sleeve:

A girl swims lazily in the cool midnight sea - the shark, attracted by the movement, glides unerringly on to its prey; and the girl is next seen as a hideously mangled carcass in the flotsam left by the receding so begins the terror which will reign in Amity, a holiday resort on Long Island which is just preparing for another successful summer season.

Sharks are rare in those waters; and great white sharks – three-ton, thirty-foot eating machines which hunt alone – are almost unheard of. But Martin Brody, Amity’s police chief, realizes that the killer must be a shark, and begins to suspect which kind. The beach, he sees at once, must be closed.

But Amity depends on its summer season, and there are people behind the town’s development who are not prepared to contemplate a financial loss. The shark will surely move on. The girl’s death must be ‘an accident’. Reluctantly Brody gives way to pressure.

From that moment the monster in the sea becomes more than the killer of individual victims. It becomes an evil presence felt throughout the town, shaking it out of its complacency and exposing its innermost fears and tensions; and Brody will not be able to face himself again until he has cleared the ocean of its menace. Peter Benchley’s magnificent story ends with a sea-chase which for tension and drama is second to none.

This novel is a spectacular achievement and ensures that Benchley will be the most avidly read novelist of the year.