Angron: Slave of Nuceria
Placed in command of a Legion he does not want, in service to a father he cannot forgive, Angron gives an ultimatum to his children, one that will set them down a path from which they can never return...
As the Emperor travels the galaxy at the head of his Great Crusade, few events are as important as rediscovering his scattered sons, the Primarchs, and bestowing them as the masters of their Legions. United, a Legion becomes a reflection of its Primarch, both in his strengths and his flaws. For the Twelfth Legion, once the War Hounds and now the World Eaters, the line between strength and flaw is almost impossible to separate. Desperate for his acknowledgement, will the World Eaters follow their father and cast themselves in his broken image or will they resist? And will any of them ever learn who their father was truly meant to be?
The Horus Heresy: Primarchs
It's the start of a brand new series of 18 books focusing on the greatest of heroes, the primarchs themselves. This volume kicks it all off with a tale of Roboute Guilliman at the height of his powers, leading his legion into battle at the apex of the Great Crusade.
The Horus Heresy: Primarchs consists of seventeen books, and the series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.
Main series Warhammer 40,000: The Horus Heresy