The problem woth series that are written by varied authors is the difference in writing style and voice. This threw me off when I first started reading this second novel in the Horus Heresy. After a short while, that fell away. Graham McNeill pulled me back into the story of thw Warmaster's fall deftly, and the chronicle again revealed a depth only hinted at before, introducing mpre of the godlike Primarchs and other legions. Again, recommended, especially for fans of 40k, but a good bok on its own.