Hektor Heresy

This article is about a battle in the /tg/ Heresy project, a fan re-working of the Warhammer 40k universe.

Hektor Heresy
Date	005.M31 to 014.M31
Scale	Galaxy-wide
Theatre	The Milky Way Galaxy
Status	Pyrrhic Imperial Victory
Belligerents
Chaos	Imperium of Mankind
Commanders and Leaders
Hektor Cincinnatus Aubrey The Grey The Voidwatcher Cromwald Walgrun Inferox "The Burned King" Johannes Vrach Uriel Salazar Rogerius Merrill Tollund Ötztal	The Emperor of Mankind Malcador the Sigilite Alexandri of Rosskar Roman Albrecht Shakya Vardhana Arelex Orannis Brennus Gaspard Lumey Golgothos Onyx the Indestructible Tiran Osoros
Strength
9 Space Marine Legions and supporting forces	9 Space Marine Legions and supporting forces
Losses
hundreds of thousands of Space Marines approximately one trillion other military casualties	hundreds of thousands of Space Marines approximately one and a half trillion other military casualties
Outcome
Chaos driven back from the Siege of Terra at great cost.

This page covers the war launched by the Warmaster Hektor Cincinnatus against the government of the Imperium. If you're looking for the main project page, go to the /tg/ Heresy

The Hektor Heresy was a galaxy-spanning conflict between the Imperial forces loyal to the Emperor (referred to as the Loyalists) and those who sided with Hektor Cincinnatus (the Traitors). The Traitors were sponsored by the Ruinous Powers of Chaos and strengthened by their gifts. The Heresy brought the Great Crusade to an end and ravaged the Imperium.

Prelude

After the great Triumph of Ullanor, the Emperor of Mankind withdrew from the battles of the Great Crusade to pursue a secret project on ancient Terra. He appointed Malcador the Sigilite to head the Imperium's government, the Council of Terra. Hektor Cincinnatus was named as Warmaster and led his brother Primarchs in the Military Council. The Primarchs would complete the conquest of the Galaxy while the Council of Terra prepared for a future in which humanity ruled the stars.

Other powers prepared for an entirely different future. Towards the end of the second century of the Great Crusade, Aubrey The Grey had became a willing servant of the Chaos Gods. The Primarch of the Eternal Zealots had been greatly embittered by the burning of Lazarus and his new masters gave him both comfort and a means to avenge himself. Aubrey was prepared to work slowly, putting off immediate gratification for the sake of total vengeance. The first traitor was aware of dark secrets among the Lions Rampant, the Life Bringers, the Sons of Fire, and The Justiciars, but the first ally he sought out was The Voidwatcher, master of the Black Augurs. As a master of the psychic arts, the Voidwatcher was well-aware that powerful entities lurked in the Warp and joined Aubrey's conspiracy in pursuit of his own ambitions.

The Voidwatcher's aid was essential to Aubrey's plan. The Chaos Gods had told their herald of the true nature of the Emperor's secret project. From beneath the Imperial Palace on Terra, the master of mankind hoped to link into the ancient Webway and give the human race the same opportunities for cultural advancement that the ancient Eldar Empire enjoyed. In order to carry out this work safely, powerful psychic wards had been erected. These wards prevented the dimensional breach to the Webway from becoming a gateway to the perils of the Warp. Under Aubrey's direction, the Voidwatcher breached the Emperor's wards. This perfidious act allowed powerful daemons to pour into real space. The Emperor, aided many of his most powerful warriors, would be fully occupied with this terrible threat for many years.

Ostium and Olmer

Malcador the Sigilite was immediately aware of the Voidwatcher's treachery. He quickly declared the Black Augurs Traitoris Extremis for use of sorcery in an attack on ancient Terra. Three Primarchs, Brennus, Rogerius Merrill, and Tiran Osoros, were ordered to assemble at the Forge World Diamat and then proceed to the Voidwatcher's homeworld Ostium to destroy the Traitor Primarch and his gene-sons. Yet the Sigilite's declarations did not go unanswered. Hektor Cincinnatus appealed for calm and invited the Military Council to assemble at Olmer for a Tribunal to determine the extent of the Voidwatcher's wrong-doing.