|aOriginally published: New York : HarperCollins, 2002
|aIn the Nevada desert, an experiment has gone horribly wrong. A cloud of nanoparticles-micro-robots-has escaped from the laboratory. This cloud is self-sustaining and self-reproducing. It is intelligent and learns from experience. For all practical purposes, it is alive. It has been programmed as a predator. It is evolving swiftly,becoming more deadly with each passing hour. Every attemptto destroy it has failed. And we are the prey.