I prefer the Robot City series to Robots and Aliens. At the end of Robot City I felt like everything was building up to a new series, which it was. I don’t think that Robots and Aliens did a good enough job to tie everything together. It seemed like just the last few chapters of Book 6 were used to close any loose ends in the plot lines.

One of my biggest questions that started early on in Robot City was: How do these aliens, Aranimas and Wolruf, fit into the universe that Asimov created? By the end of Robot and Aliens we are aware of 6 unique alien species. Four of these live on just two worlds and are interconnected by trade. It seems that after thousands of years they would expand and eventually run into the Galactic Empire from the Foundation novels.

Jerry Oltion ties off this question in just a few pages toward the end of Humanity. Two of the robots from Aurora convince Adam, Eve, and Lucius to reconsider allowing future Robot Cities to aid in colonizing worlds for humans. They speak of an early form of psychohistory that they argue shows that humans would be better off without direct intervention from robots. This fits with the progression of Asimov’s own novels which take place before and after these two series end. The idea certainly seems plausible, but it seems to me like an easy way out to play around with the plotlines.

One detail which I was disappointed to see overlooked was the origin of the Keys to Perihelion. No further explanation as to how they work, or what actually controls or created Perihelion is given. There isn’t any comment as to how Dr. Avery discovered the technology in the first place. It bugs me that a device that is integral to most of the plot in the series is left unexplained.

Another serious problem is the transition between the last book, Humanity, and a new trilogy beginning with Mirage. I read this trilogy by Tidemann back in 2002 without ever thinking to read Robot City first. It turns out that it didn’t really matter. I don’t think there is any connection between these two series at all, even though Derec and Ariel play major roles. I can only assume that their memories were erased, again, through the intervention of the robots. It seems to me there should have been a transition novel after Robots and Aliens to explain what actually happened.

This review will most likely contain spoilers for any previous books in the series, read at your own risk.

Humanity starts out with a very brief, and rather insufficient, summary of the events of the series. Derec, Ariel, Mandelbrot, Wolruf, Dr. Avery, and the three learning robots are on their way back to the original robot city. They are in for a big surprise when they enter orbit. As with previous books in this series we get to see a good portion of action, as well as discussion about what is meant to be human.

We do get to see how the whole series is tied together. For my taste, it seems that everything fits together a bit too nicely. Also, I was expecting a bit more closure toward the end. I was left with the feeling that yet another series or at least novel should fill in the gap between this series and the Tiedemann Trilogy (Mirage, Chimera, Aurora) which involves both Derec and Ariel. I’ll discuss this in more detail in my general Robots and Aliens review which will follow as I can’t do this without major spoilers for this last novel.

This review will most likely contain spoilers for any previous books in the series, read at your own risk.

Toward the end of Alliance, Derek agrees to transport the three shape changing robots to the cannoid inhabited planet that Adam originally emerged from. The title of the book refers to a subplot about a loner named Maverick, which was expelled from a main pack some time ago. His goal is to join PackHome. I really didn’t identify with this character at all. In the meantime the Robots on the planet agree to treat the cannoid inhabitants as humans in order to give themselves a purpose.

Overall this book has a little bit of action, but seems to me to be nothing more than a stepping stone before the final book. I didn’t really enjoy it that much because nothing seemed to really happen. I’m looking forward to the final book to see how all of this will finally be tied together.

This review will most likely contain spoilers for any previous books in the series, read at your own risk.

Fairly early in Intruder we saw that there was a third Silverside that had taken over Robot City. After an intense search Derec finally reclaimed control with the help of his friends. Now, Derec is faced with three robots without solid definitions of “human”. I think that this novel is quite a bit more philosophical in the search for what makes someone human. Not too much happens plot-wise, most of the bulk is focused on defining what is human. We do get a slightly better glimpse at the origins of the Silversides and a hint at where the series might end up toward the end.

This review will most likely contain spoilers for any previous books in the series, read at your own risk.

Sometime after the end of Renegade, Derec has developed some problems using his chemfets to control Robot City. Derec, Ariel, Mandelbrot, Wolruf are on their way back to Robot City along with Adam & Eve (the changelings now referred to as Silversides). This book reminds me most of “Prodigy” from the Robot City series where we saw creative drives evolve in the robots. This volume is definitely more interesting than Renegade in my opinion. Amazingly, quite a bit of the main story plot is developed and we see some more information as to the purpose of the Silversides and their quest to define what is truly “human”.

This review will most likely contain spoilers for any previous books in the series, read at your own risk.

In Renegade, Cordell Scotten describes an alien species far different than that of the wolf-like pack in Book1. I found it a bit hard to relate to this new species as well as I could with the wolf creatures. I think that Scotten might have been trying a bit too hard to come up with complex aliens. Most of the unique mannerisms that were described seemed like they came out of nowhere. One thing that I did like from this book was that the relationship between Derec and Ariel is developed a bit more. Also, we start to understand a bit more about the Key of Perihelion.

One thing I like about this book is there is a nice eight page synopsis of the whole Robot City series. Even after just reading the series, it was a nice refresher for the events leading up to Robots and Aliens. This new series involves Asimov’s challenge to the authors to describe what might happen if robots encountered an alien species. How would they treat them? How would the Three Laws apply?

I particularly enjoyed this first book because it addresses one of the main questions I had regarding the Three Laws of Robotics. What does the key phrase “human being” actually mean? Throughout Asimov’s books and it is explained that the laws aren’t as simple as the English translation. They are complicated sets of positronic potentials that govern every action of a robot.

In Changeling, Stephen Leigh describes a robot model that is given a very simple definition of “intelligent life form” as an equivalent. This idea seems to work very well in this book and after several chapters we see how this experiment intersects with the Robot City plotlines. Also, we get to see Derec use the powers he was given to control Robot City. One thing that did bug me a little bit was how little of the main plotlines was advanced.