Warmaster Abaddon is the undisputed master of the 13th Black Crusade. If the legendes are true then once upon a time he strode across the stars at Horus' side as a commander of the Luna Wolves/Son's of Horus legion of Space Marines. When Horus fell it was Abaddon who kept together the remaining free forces and led them to safety in the Eye of Terror, the only place safe from the vengeful High Lords of Terra. Initially content to have saved his people Abaddon went into retirement. He only became a warrior once more when he learned that the cropse of the Emperor had been entombed within the Gold Throne and that the Adeptus Terra was now preaching the gospel of the Corpse-God. He has sworn never to rest until humanity is free to choose its own destiny. Abaddon commands the direct allegiance of many warriors, including the Black Legion Adeptus Astartes, these most deadly of all Space Marines. Many more legions, worlds and captains owe Abaddon fealty, so many that there is no other general equal in skill or measure.