Galaxy in Flames

Finished! It's a a real thrill ride, maybe my favorite of the Heresy series so far.

I have to say though, I'm a little disappointed. Horus' betrayal seemed to come out of nowhere in the last book, and it's even more confusing here. Why would so many Space Marines join him? How did they spread this message enough for people to join, but not so far that it didn't get discovered early?

This is the third book in the Horus Hersey, which completes the required introductory trilogy before most people start to pick and choose what they find interesting. The conclusion was well executed and feels like a generally satisfactory ending even if you were to stop here. Of course, the central plot remains but the characters which we experienced these events through mostly wrap their stories.