From the Number One international bestselling author of Jurassic Park comes this classic Crichton page-turner weaving together heart-pounding thrills with cutting-edge technology. Deep in the Nevada desert the Xymos Corporation has built a state-of-the-art fabrication plant surrounded by nothing but cactus and coyotes for miles and miles. Inside eight people are trapped - because outside waiting for them looking for them is a predatory swarm of micro-particles that they themselves created. The swarm is getting bigger and more powerful by the hour and they must find a way to stop it before it gets inside - unless its already too late... Once again Michael Crichton combines up-to-the-minute science with relentless pacing to create an electrifying techno-thriller.