I'm coming back to this series after a long hiatus, and this one's been out for seven years. Spoiler - the Laconian empire falls! Not yet though, in this novel it's just getting wound up. I would have to say, maybe with the hindsight of knowing how the series continues, that Corey kind of telegraphs that ending. Here you see the hubris of Duarte rising, right through to the end where his powers increase even as the empire has fallen somewhat short of its goals.
I am reading more for the fun of the story and the characters at this point. And they have had so much run time together that they are family, like Proust novels or something. Holden has evolved in these books, because he had to--from a "man with no inner life" to a man still driven by honor but with everyone around him pretty much convinced that it's quirky. I saw a blurb for the next book refer to Holden as "Mephistophelian", which is a long trip from where he started.The social setting of the book might be more like the Roman Empire than current times, but really the series is Space Opera all the way, and does not try for deep philosophy. It just keeps you reading. Am going to do my best to catch the series all the way up.