A beautifully designed world of nanotechnology, setting the story in a damaged multi-generational spaceship with a fragmented AI struggling to regain control of the ship in time to save it. I loved the imaginative environment and the first part of the book, but unfortunately both the writing and the characters fell apart a bit in the last half, and ultimately the ending felt unconvincing and unsatisfactory. It still gets big points for the detailed and creative world, but I'm disappointed because it could have been much better.