Book: Sylvain Neuvel's "Only Human"

My last read was the third book of the Themis Files series. In the first two book we learn about a giant alien robot hidden on Earth thousands of years ago. The third book, Sylvain Neuvel's "Only Human", introduces and fleshes out the alien race that built the robots.

I really liked the first two books of the series but this third book is a bit disappointing. The alien race is dull, uninteresting, and rather Meh. There was so much potential that was squandered.

Along with this disappointment, the pacing of the book was slow and somewhat uneven. The first two books had action and suspense. This third book had little of this.

I really wanted to like this book but I had to give it three stars out of five on Goodreads. Too bad.