Changes

==The Horus Heresy==

[[Image:AbaddonvsLokken.jpg|thumb|right|200px|Abaddon battles [[Garviel Loken]] during the [[Battle of Isstvan III]] ]]

After Horus's recovery, Abaddon grew ever more protective of his [[Primarch]] and his Legion's reputation, to the point where he saw [[remembrancer]] criticism and Imperial investigation into Legion activities as threats and insults that could not be borne. He therefore sanctioned the murder of [[Ignace Karkasy]] and the blaming of Legion-caused civilian casualties upon [[Garviel Loken]].{{Fn|4}} This course of action was frustrated by the refusal of [[Tarik Torgaddon]] to accede to the plan, and the Mournival brotherhood was effectively broken as a result.{{Cite This}}

Abaddon was present at several of the major actions of the [[Horus Heresy]]. During the purging of the loyalist Legionaries at [[Isstvan III]], Abaddon notably took to the field to attend the final meeting of what had once been the Mournival, at which he dueled with Garviel Loken. Though slightly wounded in the combat, Abaddon emerged the victor.{{Fn|5}} Abaddon again dueled Loken on the [[Vengeful Spirit]] in the aftermath of the [[Battle of Molech]] after the [[Knights-Errant]] attempted to assassinate Horus.{{Fn|10}} During the [[Battle of Trisolian]] Abaddon relished the massacre of his former comrade [[Bror Tyrfingr]] and expressed shock when Horus, cleansed of some corruption by the [[Spear of Russ]], expressed regret for how much blood had been spilled in his war.{{Fn|13}} Subsequently, Abaddon was charged with hunting down and finish off the Wolves at the [[Battle of Yarant]]. However the Wolves ultimately escaped thanks to the aid of [[Corax]], and Abaddon returned to Horus' side during the muster at [[Ullanor]].{{Fn|14}} During the subsequent [[Solar War]], Abaddon was given the important duty of capturing [[Luna]] from loyalist forces. Commanding a fleet of Sons of Horus, Word Bearers under [[Zardu Layak]], and Thousand Sons under [[Ahzek Ahriman]], Abaddon's forces initially clashed with the [[White Scars]] fleet under [[Jubal Khan (Heresy)|Jubal Khan]]. During the boarding of the White Scars [[Battleship]] ''[[Lance of Heaven]]'' alongside Layak, Abaddon dueled and slew Jubal. He next directed the [[Battle Barge]] ''[[War Oath]]'' in a kamikaze attack on the defensive ring around Luna, devastating the loyalist defenses as he teleported onto the moons surface with his Justaerin elite. During the fighting inside Luna's gene-labs, he convinced the [[Selenar]] Matriarch [[Heliosa-78]] to join Horus instead of following through with [[Rogal Dorn]]'s orders to destroy her precious gene-tech in order to prevent it from falling into traitor hands.{{Fn|16b}}

Abaddon was at Horus' side during the [[Siege of the Imperial Palace]].{{Fn|1a}} By this time Horus was literally swelling with the power of the Chaos Gods and spent much of his time comatose inside [[Lupercal's Court]] scanning the Warp. By this point Abaddon began to grow openly resentful of his gene-father, viewing him as displaying weakness and becoming a slave to the Chaos Gods. He resisted the urge to kneel before Horus but when in the moments that the Warmaster's old charisma returned so did the First Captains admiration. He blamed much of Horus' state on [[Zardu Layak]], but was forbidden from killing the Dark Apostle.{{Fn|17a}} With Horus' increasingly absent from command of the battle, holding the traitor war effort together in the face of the rebellious traitor Primarch's increasingly fell to Abaddon.{{Fn|17b}} Abaddon later learned from Layak that Horus' very soul was being consumed by the Chaos Gods as they poured their power into him, and that the Warmaster's remaining time was limited. Abaddon asked what would happen if Horus died before he slew the Emperor, to which Layak replied that the Gods would simply find a new champion.{{Fn|17c}}

In the battle for the [[Lion's Gate Spaceport]] Abaddon led 3,000 Sons of Horus in an attack on the complex's highest levels alongside Zardu Layak, [[Kharn]], and [[Kroeger]].{{Fn|18}} During the battle Kharn became stranded behind Imperial lines as [[Rogal Dorn]] closed in, and rather than abandon his ally Abaddon led an attack to rescue the World Eater. Needing to protect the future champion of the Gods, Zardu Layak scarified himself to hold off the Primarch and allow Abaddon and Kharn to escape. By this point in the battle, Abaddon had become frustrated with Horus for not taking to the field of battle himself.{{Fn|18a}} After the fall of Lion's Gate, Abaddon observed the same flaw in the [[Saturnine Gate]] that Perturabo had also discovered. Wishing to end the war as quickly as possible in order to save the quickly-decaying Horus, Abaddon proposed exploiting the breach in Saturnine to end the siege in a matter of weeks as opposed to months. Perturabo was hesitant, thinking Dorn also knew of the flaw and that the attack was a trap. Abaddon convinced Perturabo to allow him to lead the assault, freeing the Lord of Iron from humiliation and his own Legion's blood should it fail.{{Fn|19}} For the operation, Abaddon assembled the whole of the [[Emperor's Children]] by convincing [[Eidolon]] to the attack the Saturnine walls on the surface while he led the [[Justaerin]], [[Reaver Attack Squad]], 18th Company, and 19th Companies in a subterranean assault.{{Fn|19a}} However just as Perturabo suspected, the attack was a trap set by the loyalists and many of the Sons of Horus [[Dark Mechanicum]]-provided burrowing vehicles broke down. In the ensuing ambush led by [[Garviel Loken]] and [[Nathaniel Garro]], Abaddon managed to slay [[Bel Sepatus]] but barely escaped with his life. He vowed to one day kill Perturabo and his Dark Mechanicum allies for allowing the disaster to develop as it had. He also found that he had loved the heat of desperate battle to the point where leaving it made him weep.{{Fn|19b}}

[[Image:AbaddonTOH.jpg|thumb|right|200px|Abaddon after the fall of [[Maleum]] ]]

*23: [[Codex: Chaos Space Marines (3rd Edition)]]

**{{Endn|23a}}: pg. 21

===Uncited===

{{Uncited}}