First and foremost, Horus must challenge the might of the Sol System itself and the many fleets and bulwarks arrayed there. But the way to the Throne will be hard as the Primarch Rogal Dorn, the Praetorian of Terra and its protector, marshals the defences.

He has become the ascendant vessel of Chaos, and amassed a terrible army with which to enact his will and vengeance.

Horus' desire is nothing less than the death of the Emperor of Mankind and the utter subjugation of the Imperium. Terra now lies within the Warmaster Horus' sights, the Throneworld and the seat of his father's rule. After seven standard years of bitter war following the Drop Site Massacre at Isstvan V, the end has come at last for the conflict known infamously as the Horus Heresy. The Solar War is the first novel in The Siege of Terra series and is written by John French. The Siege of Terra will detail the final events of the Horus Heresy, most notably the eponymous Siege of Terra and the final duel between Horus Lupercal and the Emperor of Mankind. The Siege of Terra is a direct continuation of the original Horus Heresy novel series. The following is a complete list of all the titles in the main Horus Heresy: Siege of Terra novels series:

Horus heresy reading order