Greg Bear is my favorite SCIENCE fiction writer. I started reading him with his book Darwin’s Radio and with the exception of the sequel to Forge of God, I’ve enjoyed all of his books. This one is about nanotechnology. A rougue scientist discovers a way to make tony living machines. A dust-up at his lab results in him having to flee with the biologicals inside his body. Chaos ensues. It’s a bit tough to follow because there are long dense passages about cellular regeneration that were a little over my head, I think. I say I think because I didn’t understand them and I perfectly followed the entire rest of the novel. Bear’s integration of the science + story isn’t as tight in this book as it is in others, but it’s still a lively bio-apocalyptic story with some good characters and a lot of the odd scenarios that confronting this sort of disaster brings out.