Roboute Guilliman - Death of the Avenging Son: Roboute Guilliman continued to serve with the Ultramarines Chapter, leading them and the Imperium as its Lord Commander for a hundred standard years after the Second Founding. It was said that during those years, Guilliman led several incursions alongside his brother primarchs against the remaining Chaos Space Marines.During one such conflict on the world of Eskrador, Guilliman faced his former brother Primarch Alpharius of the Alpha Legion. Due to the vanity of Alpharius, Guilliman utilised a surprise attack which struck at the heart of the Alpha Legion forces and managed to kill Alpharius in a duel.However, Guilliman and the Ultramarines were greatly mistaken in their belief that the snake would die without its head, as indeed, the Alpha Legion's symbol is a hydra, the multi-headed serpent. The Alpha Legion retained its coherency as a fighting force and managed to drive the Ultramarines back in repeated assaults, undaunted at the loss of their primarch.Guilliman eventually was forced to pull his warriors back into orbit and bombard Eskrador from above, but the Alpha Legion would remain a stubborn and insidious threat to the Imperium for millennia to come.It was in this period, at an unknown point, that Guilliman first struck up a relationship with the Archmagos Dominus Belisarius Cawl. Guilliman charged Cawl with two important tasks for the future -- developing a technological means to resurrect him from death should he fall and the development of the Primaris Space Marines, a new generation of transhuman warriors that could improve upon the Emperor's original design and learn from the failures of the Horus Heresy. Cawl would spend the next 10,000 years in pursuit of both charges.Guilliman met his seemingly final fate during the Battle of Thessala in 121.M31, when he was laid low by the Traitor Daemon Primarch Fulgrim of the Emperor's Children, who had become a Daemon Prince of Slaanesh.During this encounter with his former brother, Fulgrim managed to fatally injure Guilliman in the neck with his poisonous blade (which was remarkably similar to the Anathame sword that was used by Dark Apostle Erebus to fatally wound Horus on Davin's moon).Fatally poisoned by his one-time brother, Roboute was transported back to Macragge in a stasis field, and has remained entombed in the field for 10,000 years, frozen in time. Although physically impossible within the null-time of a stasis field, it was believed by many pilgrims to his shrine that his wounds were healing, and that one day he would awaken again when the Imperium needed him most.The Shrine of Guilliman built to contain his body was one of the most holy places in the entire Imperium, and one which welcomed millions of pilgrims every year. It lay within the Temple of Correction, a vaulted sepulchre forming a small part of the Ultramarines' vast northern polar fortress on Macragge.The temple was a miracle of construction and typical of the attention to detail to which the Ultramarines apply themselves. Its proportions defied the human mind by the scope and grandeur of its design. The multi-coloured glass dome that formed the roof was the largest of its kind.Even the Techno-magi of the Adeptus Mechanicus came to marvel at the structure said to have been designed by Roboute Guilliman himself. According to the Ultramarines there was enough marble within the temple to build a mountain, and sufficient adamantium and shining plasteel to construct a sizable Imperial warfleet.Within this edifice was the great marble throne of Roboute Guilliman, and upon that throne sat a regal corpse. Though the best part of 10,000 years had passed since his death, the primarch's body was perfectly preserved. Even his death wounds from Fulgrim's blade were visible upon his throat.His mortal remains were preserved from the ravages of time by means of a stasis field that isolated the primarch from the time-stream of normal four-dimensional space-time. Everything encompassed by the field was trapped in time and could neither change nor decay. There were some in these years, however, who claimed the primarch's wounds did change. They said that Guilliman's body was slowly recovering and that his wounds showed mysterious signs of healing.Others denied the phenomena, and pointed out the sheer scientific impossibility of change within the stasis field. Yet enough believed the stories to come and witness for themselves the miracle of the primarch, generation after generation.