Luke Kitson is training with the ELITE, a crack team of teenage hackers recruited by MI5 and currently investigating YourLife, a new social networking site with vast ambitions. But disappearances begin – first members of the site, next MI5 agents and finally one of the ELITE hackers. Luke must infiltrate YourLife’s skyscraper headquarters and find his friend. One hundred floors. One thousand people who will do anything to stop him. Can Luke prove that he belongs to the ELITE?