which started when the Emperor’s Warmaster Horus Lupercal was corrupted by Chaos and convinced to rise up against the Emperor. The result of Horus’s betrayal was the Emperor’s transformation ...

The Horus Heresy was Warmaster Horus Lupercal’s coup and betrayal of the Emperor of Mankind and subsequent turn toward Chaos. Nicknamed 30K by the fans, this pivotal, prequel story moment has ...