Robots and Empire

DECLINE AND FALL OF SOLARIA

Gladia Delmarre's homeworld, the Spacer planet Solaria, has been abandoned - by its human population. Countless robots remain there. And when traders from Settler worlds attempt to salvage them, the robots of Solaria turn to killing . . . in defiance of the Three Laws of Robotics!

PAX ROBOTICA

Long ago, Gladia's robots Daneel and Giskard played a vital role in opening the worlds beyond the Solar system to Settlers from Earth. Now the conscience-stricken robots are faced with an even greater challenge. Either the sacred Three Laws of Robotics are in ruins - or a new, superior Law must be established to bring peace to the galaxy. With Madam Gladia and D. G Baley - the captain of the Settler traders and a descendent of the robots' friend Elijah Bailey - Daneel and Giskard travel to the robot stronghold of Solaria . . . where they uncover a sinister Spacer plot to destroy Earth itself.

THE THREE LAWS OF ROBOTICS

. A robot may not injure a human being or, through inaction, allow a human being to come to harm
. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law
. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law