Changes

[[Image:AlphariusOmegonDorn.jpg|thumb|right|250px|Alpharius battles [[Rogal Dorn]] during the Heresy{{fn|1010c}}]]In preparation to infiltrate the [[Sol System]] in the [[Solar War]], Alpharius used his [[Librarian]]s to seemingly switch bodies with his trusted [[Harrowmaster]] [[Kel Silonius]]. To ensure secrecy, Alpharius also erased his own memories and took on Silonius' persona. As the real Silonius led a a fleet of 200 Alpha Legion warships into the Sol System, Alpharius led a [[Headhunter]] and human operative team in setting the stage for its arrival through acts of sabotage and preparation. During the final action, Alpharius' memories were restored by psychic trigger.{{Fn|1010c}}

During the subsequent [[Battle of Pluto]] Alpharius confronted [[Rogal Dorn]] in a chamber locked inside of the Hydra Fortress Moon in [[Pluto]]'s orbit. He killed [[Archamus]]'s team hunting him but left Archamus mortally wounded and alive to watch as Dorn teleported into the chamber. Both Dorn's [[Huscarls]] and Alpharius's [[Lernaean]]s teleported in, and the primarchs slaughtered the other's warriors. The two battled, with Alpharius dealing Dorn many wounds, using his speed to stay out of reach. Throughout the fight, he tried to convince Dorn that he was there to teach him how to win, to expose his weaknesses, that he could not win the current war, and how there needed to be a new type of war. He also claimed that Dorn didn't understand what he was fighting for, and they both cared about the future. Only he knew the truth regarding the conflict, and he did not fight for Horus but for Dorn.{{fn|1010c}}

Eventually, he tried to kill Dorn with a blow from his ''[[The Pale Spear|Sarrisanata]]'' ("Pale Spear"), but Archamus was able to use the last of his strength to rush forward and deflect the blow, causing it to stab into Dorn's side. Dorn then grabbed the spear and sliced Alpharius's hands from his wrists before he slashed Alpharius across the chest, stabbed him with his own spear, and finished by cutting through Alpharius's skull with his mighty [[chainsword]], ''[[Storm's Teeth]]''.{{fn|1010c}}

Archamus soon passed away, but a team under his second [[Kestros]] found the primarch and the now deceased Archamus. Dorn then hid from the loyalists Alpharius's appearance within the system and his death, promoting Kestros and others with direct knowledge of the events to Huscarl to replace those who died. Dorn sought to deny Alpharius any acknowledgment or honor. Far away, Omegon sensed the death of his twin and he grew distant. Upon being notified that Horus demanded to speak with Alpharius, Omegon took up the name and became his twin brother.{{fn|1010c}}

*{{Endn|8}}: [[Wolf King (Novella)]]{{Cite this}}

*{{Endn|10}}: ''[[Praetorian of Dorn (Novel)|Praetorian of Dorn]]'' Book 4 Ch 5 and Ch 6; Epilogue

**{{Endn|10c}}: Book 4 Ch 5 and Ch 6; Epilogue*{{Endn|11}}: [[The Seventh Serpent (Novella)]]{{Cite this}}