James SA Corey postponed the release of Tiamat's Wrath so they could concentrate on getting it right. It was worth the wait. Persepolis Rising (book 7) was a difficult book, bringing in a significant time jump for the lead characters and ending on a huge downer with the crew of the Rocinante fragmented: some captured, some on the run. One of the strengths of Tiamat's Wrath is how these characters - isolated and in difficult circumstances - pull themselves up to a position where they can strike back. This is one of the strongest books in the series with brilliant plot and character reveals throughout.