The Shrine of Unity was a monument to the completion of the Unification Wars in the Sol System erected during the years of the Great Crusade. It was situated upon a grandly-sized comet that observed an elliptical orbit around Sol -- routinely swinging back into Terra's solar system. The comet had been seen in the heavens when the Emperor had secured the Unity of Terra, and it was for his victory that the shrine was created on the solar object. In the year before 132.006.M31, the Word Bearers' Captain, Sor Talgron, visited the Shrine. This was noted by the Primarch of the Imperial Fists, Rogal Dorn, who had been recently tasked with defending Terra in the wake of the news concerning his brother Horus Lupercal's betrayal at Istvaan III. Dorn questioned Talgron, and was told by the dour Word