Robots and Aliens
created by Various
A subsidiary or ancillary series to the Asimov's Robots series.
Robots and Aliens is a series of novels written by various authors and loosely connected to Isaac Asimov's Robot Series. It spun off from Isaac Asimov's Robot City, and features the characters of Derec and Ariel from that series. The plot deals with the Three Laws, Robots and what would happen if robots were to encounter alien life.