Daneel and Giskard, the robots who once helped open Earth's worlds beyond the Solar system, now confront a profound crisis: the very foundation of the Three Laws of Robotics appears to crumble. Traveling alongside Madam Gladia and D.G. Baley, a descendant of their old ally, the conscience-stricken machines must determine whether a new, superior Law can forge peace across the galaxy. Asimov's exploration of artificial consciousness and morality reaches its crescendo as the fate of human-robot civilization hangs in balance.
