This is the second book in the iBooks spinoff series based on Asimov’s robot mysteries and the Robot City and Robots and Aliens series. Overall it fits into the Foundation Series acceptably. This book is a mystery much like Mark’s first Mirage.
I think overall this book is better written than Mirage, and is certainly better plotted than the Robot City and Robots and Aliens series. The book is believable and entertaining, without having to suspend too much disbelief. I enjoyed it, although the book isn’t important to the development of Foundation Series overall.