Disclaimer: I thank the publisher, Preseption Press, for providing me with a review copy of this book.
The cover of "Planet Pluto" by B. C. Chase has a very enticing picture of an EVA astronaut and a spacecraft in front of the (dwarf?) planet Pluto in the dark of space. This sets certain expectations which are certainly met as other than flashbacks the novel is entirely about the crew's journey from Earth to Pluto. Additionally the cover phrase "You can't call for help when you're three billion miles from Earth." at first simply seems like an appeal for the adventure that the crew faces, but as disaster is followed by disaster with repeated lethal results, the reader realizes that this is an "In space no one can hear you scream" type of warning that there is a strong element of suspense and even horror to this story. To be sure, as a space travel scifi fan, "Planet Pluto" felt like a mixture of Andy Weir's "The Martian" and Arthur C. Clarke's "2001: A Space Odyssey". And as such, I certainly enjoyed reading "Planet Pluto". The travel descriptions of Venus, the Sun, Jupiter, Saturn, and Pluto were very nice as were the various science facts and ongoing debates (e.g., is Pluto a planet or not) that were worked into the crew conversation. Another pleasurable aspect of this novel was the whodunit mystery aspect. As this book is classified as "First Contact Sci-fi" it is not a spoiler to point out that the reader will speculate about the aliens throughout the book. What are they? Where are they? What capabilities do they have? How much do they know about humanity? How did they learn it? What are their motives? Additionally, as the death toll increases, the reader is again given a chance to speculate about each "accident". Likewise, Chase gives the reader hints about the direction of the book that are subtle enough that the reader could ignore them as just odd, but which actually turn out to be important.
Although it was a pleasurable novel to read, my biggest complaint was that the author repeatedly included twists and gimmicks that did not make a lot of sense in order to realize an overly dramatic plot development. For example, one of the accidents that happened when the spacecraft left Earth orbit made no sense. As the crew was expecting a 4 g acceleration and did not have enough seats, I would expect that people without a seat would be told to lie down on the softest correct-direction-facing surface available. Being told to hang by hand onto a bar with a distance to fall seems to only invite the injury that happened. Likewise, given NASA's extreme love of multiple redundancy it seems odd that they did not have several backup communication protocols documented and ready to go. And as far as science goes, the author does a great job of describing the repeated use of planets (and a star) to increase velocity through the famous slingshot maneuvers, but they do not describe how they were able to stop when they arrived at their destination with this tremendous speed. Similarly, although the SPHERES robots which can float around and maneuver in a zero g environment are an excellent addition to the story, it was left up to the reader to determine how they could continue to float around in the 1/6 g environment of Pluto. Though, I suppose all of these can be forgiven in the name of a dramatic plot.
Finally, the conclusion certainly does not disappoint. The crew certainly had an epic journey with heroic experiences. The resolution of the nature of the Existent Communicating Intelligence in this novel actually brings up many more questions than it answered. Different models of intelligence are desirable and nearly mandatory in a science fiction story, in this case it was nearly literally a thrilling but unsatisfying "deus ex machina". Finally, after the roller coaster of suspense and mystery, the last episode in the book was surprisingly emotionally pleasing.