Changes

The Traitor Marines laid waste to their former allies' holdings along the way to [[Terra]]. Throughout the Imperium, rebel and loyal forces battled viciously. Horus and his forces destroyed [[Luna]]'s naval bases, and within 30 days had destroyed the Terran system's defences. Terra was bombarded and devastated, and eventually, the corrupted Marines landed on Terra, experiencing heavy resistance from the forces defending Terra (among these loyalists were Blood Angels, Imperial Fists and White Scars). The loyalists fought bravely against all odds, and many were the tales of heroism in those dark days: Jaghatai Khan led the White Scars and the few remaining Imperial tank companies to [[Lion's Gate]] spaceport, retaking it from the traitors and halfing their landing forces. [[Sanguinius]] duelled the Bloodthirster Ka'bhandam killing the daemon and avenging his defeat at its hands in the Signis Cluster. Rogal Dorn fought side by side with Terminator veterans of the Imperial Fists, fighting in the corridors of the Emperor's palace either hand to hand against the [[World Eaters]], or in vicious firefights against the [[Death Guard]]. But the loyalists were outnumbered, and the battle for Terra turned into a siege of the [[Imperial Palace]]. By the 55th day the rebels had reached the walls of the Inner Palace. Horus, who had remained in orbit aboard his battle barge, was at that point warned that the rest of the loyalist Legions were returning to Terra and would arrive in hours. The Ultramarines were pushing their way to Terra, along with the Space Wolves and the Dark Angels. If this were to happen, Horus' advantage in numbers would be diminished. Out of options, Horus decided to play his final gambit. He let down the force field protecting his battle barge, to lure the Emperor in a final battle that would decide the war.

The [[Emperor]] saw this opportunity and teleported to the Warmaster's battle barge with two of his the [[Primarch]]sSanguinius and Dorn, Terminator armoured Marines of both their Legion Legions as well as members of the Adeptus Custodes.

Upon teleporting, the Emperor's forces were scattered through the ship, and were forced to battle their way to find each other, fighting their way through traitor Space Marines and all manner of Chaos-twisted horrors. Sanguinius found Horus first. Horus was at the height of his powers; augmented by the blessings of all four Chaos Gods, and Sanguinius was slain. Horus stood over the Primarch's body as the Emperor found the Warmaster. After The Emperor and Horus engaged in a final duel; initially not wanting to hurt Horus, still refusing to believe his favoured son would betray him, the Emperor suffered terrible wounds, enough to kill a lesser man, at Horus's hands, who felt no such compunction. It was only when a long lone Adeptus Custodes tried to intervene and grueling battleHorus slew him with a glance, that the Emperor was successful in defeating realised just how far his beloved son had fallen. Summoning all his power, the Emperor unleashed a psychic attack of phenomenal power that incinerated Horus's soul and killed his body. In the final instant before he died, the power of Chaos left Horus and the great man Horus had been resurfaced from beneath the monster he had become. The Emperor had achieved victory over Horus but he himself was mortally wounded. The Emperor survived long enough to be transferred to the [[Golden Throne]] - a strange mechanism that would allow him to survive forever in a state of undeath.