Weaving an epic of complex dimensions, David Brin plaits initially divergent story lines, all set in the year 2038, into an outstandingly satisfying novel. At the center is a type of mystery: after a failed murder attempt, a group of people try to save the victim, recover the murder weapon, identify the guilty party and fend off other assassins, all the while being led through n+1 plot twists — each with a sense of overhanging doom, because the intended victim is Gaea, Earth herself. The struggle to save the planet gives Brin the occasion to recap recent global events: a world war fought to wrest all caches of secret information from the grip of an elite few; a series of ecological disasters brought about by environmental abuse; and the effects of a universal interactive data network on beginning to turn the world into a true global village. Fully dimensional and engaging characters with plausible motivations bring drama to these scenarios. Brin’s exciting prose style will probably make this a Hugo nominee, and will certainly keep readers turning pages.