Humanity (Isaac Asimov’s Robot City: Robots and Aliens, #6) Tag: Owned by IAuthor: Jerry OltionGenre: Science FictionSeries: Isaac Asimov's Robot City: Robots and AliensPublisher: AcePublished: 11/1/1990Amnesiac Derec, on a galaxy-wide quest for his identity, stumbles upon Ariel Burgess and Dr. Avery, the same man who had obliterated his memory.