A masterclass in tragic corruption, detailing the Emperor's Children’s fall during the Isstvan V Drop Site Massacre.
The first three books are widely considered essential for any reader, establishing the political landscape and the initial descent into madness.
Following the opening trilogy, the narrative branches into non-linear paths, focusing on different legions and critical battlefronts.
Set at the height of the Great Crusade, it introduces the idealistic Warmaster Horus and the noble Captain Garviel Loken.