A good book, but not at all what I expected. Need to work on tamping down what I think a book will be, but in this case this book was billed as "A Thousand Sons from the Space Wolves point of view", and I was very much looking forward to it. About a third of the way in I realized this was a very deep, very introspective book on the Sixth Legion and their motivations leading up to the last 40 pages or so where the battle of Prospero is finally revealed. Having to go back and study some of the difficult parts to read REALLY slowed my reading down. Good premise by Abnett, but fair execution. Reading the last 40 pages was great, but I was also thinking "where was THIS for the last 400 pages?". Still enjoyed the Space Wolves back story, though.