We should have suspected that nonhumans were involved right from the start when the activation process didn’t involve a lot of arcane commands that had to be done in just the right order, and the destination was displayed as a name rather than using some counterintuitive code. No human software engineer would produce a device that easy to use.
The book is the last in the Lost Fleet series, completing the story arc. The odyssey of Captain Jack Black is finishing. Or does it? Jack Campbell brings the story to an end, but leaves place for another adventure.
Compared with the other books of the series, it is rather the worst. The plot is still good, but a bit predictable. The romantic twist is an interesting idea, but it does not add much to the main story. And the romantic ending is a cliche.
However, the story is still captivating and good enough to make the reader follow the story until its end. The final fights are well thought and engaging. The dialogue was never a strong point of the book, but managed to stay at decent levels. Some new characters are memorable, although seem sometimes as caricatures of some human traits and cultures.
I enjoyed the book, although the series does not finish with a high. A nice read for a rainy evening, with a glass of tea nearby.