In the bestselling tradition of Jaws—from the depths of the sea comes a new kind of terror.

In all his years as a professional diver, Will Sturman has never encountered a killing machine more ferocious than the great white shark or as deadly as the piranha. Now, off the coast of California, something is rising from the deep—and multiplying. It is voracious, unstoppable, and migrating north, an ungodly life form trailed by a gruesome wake of corpses. With the help of the brilliant and beautiful oceanographer Valerie Martell, Will finds himself in a race against time to stop the slaughter by a predator capable of devastating the world's oceans.

Pray it kills you quickly.