This book has a tremendous writing style, only fitting for the epic scale of the planetary assault that takes place over the course of the novel. However, once on the surface, there is not much that happens to the Ultramarine battle-brothers. Or rather, nothing unexpected. Though the reader is entertained by nearly 200 pages of war and slaughter, there is not really much that keeps him thrilled and makes him want to read on, waiting for a big mystery to be solved or something like that. I still recommend that book, because I bought it knowing that I wouldnt't read another Horus Heresy or Space Marine Battles novel. Instead I was looking forward to a portrait of the Primarch of the Ultramarines, Roboute Guilliman. and on that, the book fully delivered. The reader does get a good glimpse of the thinking and behaviour of the primarch, and that, at least for me, was the main purpose of the book.