A solid 4 stars, with a 5 star appendix at the back of the book.
This is a high rating for a novella, I tend to think that Christopher Farnsworth is better with his full sized novels, but this story works as a stand alone and introduces some interesting developments in the Nathaniel Cade character.
At times, I found the story a little, 'by the numbers,' and I was questioning the author's passion for the story, hence the lack of 5 stars. However, what was written is overall, a good, if short, example of what I have come to expect in this series.
Also the title has nothing to do with the story, the deep state is conspicuous in it's absence - a quirk perhaps. (Or, is it really somewhere in there, lurking just beneath the surface, hidden behind everything that you have been indoctrinated to see...)
Recommend this book for anyone who likes conspiracies, secret government operations, supernatural fights, and a unique hero/sidekick pairing.
P.s. The appendix is a brilliant compilation of backstory info about the world of Nathaniel Cade, and includes an excellent vignette.