An absolute gem of a book. I am a great fan of science fiction and expected just another mildly interesting computer goes mad story. It was certainly not 'just another' and was far more interesting than that, indeed it kept me enthralled throughout and never any moment of 'this is getting a bit boring'. It is not an 'action' story, although there are brief bits of that, the story revolves much more around the inter-actions of the main characters with each other as well as to a lesser extent with the computer 'brain' in the nuclear shelter who is slowly becoming 'aware' and exploring the possibilities of his/her/its life. The human characters at first seem somewhat cardboard cut-out and extreme versions of people we see all around us in the news and elsewhere but they develop and become much more interesting personalities as the story evolves with its twists and turns especially as we see the story progressing from each of the characters points of view. Mix all that with some very astute, and accurate, philosophical comments on the state of modern Society, politics and life in general (A J Desmond for Prime Minister anyone?) and we have a truly inspiring as well as an entertaining, and even humorous, story. Great.