Book: "Leviathan Falls" by James S. A. Corey
The final installment, book 9 of what became "The Expanse"
Pretty perfect ending to a set of books. The gang gets back together one last time to fight an existential threat to humanity, the same threat that's been looming all along.
I loved the ending - enough finality to get closure, enough vagueness to still wonder how everyone did afterwards. The eiplogue giving a hint of how a few of them got on, and giving hope for the future.
I have no hesitation in recommending you read the entire set of books. The pay off was worth it, and an amazingly detailed universe to discover.
5/5
Now I just need to avoid the TV series for the rest of my life to avoid spoiling my fond memories of the crew of the Roci.