

The Mournival took Horus to the Davinite Serpent Lodge, which they were told could heal him.

The wound caused by the blade refused to heal, despite Horus's super-enhanced immune system or the efforts of the Sons of Horus's best apothecaries. However, the Horus Heresy truly began after Warmaster Horus was wounded by the possessed Eugen Temba wielding the stolen Anathame on the moon of Davin, a place that was cursed by the foul Chaos God Nurgle. This account may be either a partial or total lie, as Malcador himself seems to keep its validity ambiguous. However, the Ruinious Powers intervened before their plan could be fully formulated, leading to disaster in the Horus Heresy. This would lead humanity, not bio-engineered superhumans, as the rulers of the galaxy. According to Malcador, both deliberately agitated the Primarchs and turned them against one another, with the resulting war purging certain unmanageable Primarchs and their respective Space Marine Legions just as they had the earlier Thunder Warriors.

Īccording to First Lord of the Imperium Malcador the Sigillite, the Heresy's causes may have been deliberately put into motion by both himself and the Emperor. Though harmless at first glance, many of these lodges would become hotbeds of support for Horus' rebellion in the war to come.

Secretly planning to make war on the Emperor, the Word Bearers quietly established Warrior Lodges with their Chaplains throughout the rest of the Astartes Legions. Thus the Word Bearers had secretly become the first Chaos Space Marines. This eventually led Lorgar and his Legionaries to the Eye of Terror, where they pledged themselves to the forces of Chaos and began to conspire against the Emperor. After Lorgar and the entire Legion were publicly humiliated, scolded, and forced to kneel in front of the Emperor for spreading their belief that the ruler of mankind was a divine being, the pious Word Bearers felt betrayed and desperately sought any power in the universe to worship. In addition, the Emperor's disciplining of Lorgar and the Word Bearers was a contributing factor to the Heresy and the event which set it directly into motion. Worse still, the Primarchs were denied a place on the Council and the notion of an Imperium dominated by human bureaucrats, not the sons of the Emperor and their Astartes Legions, became a cause of concern for many of the Primarchs. Many of the Primarchs viewed these human bureaucrats as usurping their rightful place as rulers of the Imperium they had fought so hard to create. Īnother contributing factor was the formation of an administrative body known as the Council of Terra. This apparent abandonment of the Great Crusade, for something he would not even share with his sons bred mistrust, resentment, and disappointment towards the Emperor amongst many of the Primarchs. The first was the Emperor's return to and seclusion on Terra, working on a secret project that he refused to share with any of his Primarchs, including his most favored son Horus, whom he had named Warmaster. Though the Heresy was ignited by the product of a conspiracy by the forces of Chaos, there were precipitating factors that helped push many of the Legio Astartes towards rebellion.
