Stars: 5 out of 5.

I have a particular fondness for this series even since I discovered Linesman, the first book in the series, which I have reviewed, as well as the second book. So I picked up Confluence with a certain amount of trepidation. Would it be as good as the previous books? Let me reassure you right now - it is.

The New Alliance might be in possession of the only alien fleet known to mankind and the only linesman who can communicate with that fleet, but that doesn't mean they will automatically win a war. There are outside powers that would stop at nothing to destroy it before the alien fleet is fully operational.

Trouble is brewing within the Alliance itself where many disparate worlds, some of which had been bitter enemies before, battle for dominance. Many of those worlds aren't happy with the fact that Lancia has Ean Lambert's contract, which means unlimited access to the alien ships. And while the Crown Princess of Lancia is more than happy to share the technological advances with her new allies, her father the Emperor seems to have a different opinion about what would make Lancia a power to be reckoned with.

So Princess Michelle has to play a dangerous political game to protect those she holds dear. A game that sends Radko on a secret mission right into the heart of the enemy territory.

And all Ean has problems of his own. The alien ships are a lot more self-aware than normal human ships and they are getting impatient. If Ean won't provide them with a crew, they will start choosing their own crew. In fact, some of them have already started…

What I love about this series is that with each book we learn a little more about the lines and what they are capable of. Just because Ean can talk to line eleven on the alien ships doesn't mean that he will automatically get all the answers. Lines don't think like humans, so the most difficult part of his job is to translate what he wants the lines to do into concepts they can understand.

What did we learn about the lines and the ships in this book? That for the lines, ship doesn't necessarily mean the captain, even though most of the time it is. But sometimes, it can be an unremarkable mechanic that had been working on that particular ship for years, or even a guard who's been overseeing reconstruction works. We have also learned that ships become more aware the longer they had been crewed, especially if there are no inner conflict within the crew.

Apart from discovering new tidbits about the lines, this book also gives us some important and rather satisfying developments for our main characters and their relationships. I won't get into details because that would be some big spoilers. Go read for yourselves.

I would just mention that with most of the inner conflicts and tensions out of the way by the end of Confluence, our characters can finally focus on the bigger issue that has been looming on the horizon since they discovered the Confluence fleet. Those powerful alien ships had been in a fight, and a vicious one from the damage they all sustained. A fight they were losing, since the whole fleet jumped into the Void and tried to flee the battle. So what were those aliens fighting against? And how long before their enemies decide to pursue them and discover the human planets, divided, almost defenseless and ripe for the taking?

I don't know about you, but I am looking forward to exploring this possibility and hope that the author will take us there in the next books.

PS. I received and advanced copy of this book from NetGalley in exchange for an honest review.