" Michael thought he understood the VirtNet, but the truth he discovered is more terrifying than anyone at VirtNet Security could have anticipated. The cyber terrorist Kaine isn’t human. It’s a Tangent, a computer program that has become sentient. And Michael just completed the first step in turning Kaine’s master plan, the Mortality Doctrine, into a reality. The Mortality Doctrine will populate Earth entirely with human bodies harboring Tangent minds. The VNS would like to pretend the world is perfectly safe, but Michael and his friends know that the takeover has already begun. And if they don’t stop Kaine soon, it will be game over for humanity. "