|summary='Silver' has a large ant with silver circuits on the cover, and while there are no actual ants in this book, the illustration is very well suited. This books puts a unique twist on the ever popular zombie genre. Instead of living corpses, we have nanobots which can turn humans into machines. They possess a swarm intelligence similar to ants. This sounds far fetched but a great deal of progress has been made in research currently being conducted with just this in mind - to create nanobots with swarm intelligence - a phenomenon well known in the natural sciences in which a less intelligent organism is capable of highly intelligent behaviour through a hive mind. It would be impossible for scientists to control hundreds or thousands of nanobots independently - so the idea is to control a few and have these control the rest. Of course there would always be safeguards on this type of technology and there were safeguards in the book as well - they just didn't work.