Fabius Bile - The Blight: Inducted into the IIIrd Legion, known to some as "His Heralds," prior to the discovery of the Legion's Primarch Fulgrim, Fabius hailed from northern Europa on Terra and was a purple-eyed, golden-haired Legion Apothecary, wearing the thunderbolt and rayed sun insignia of the Legion proudly on his purple battle-plate. Whilst under the stewardship of Legion Master Thrallas in the days before Fulgrim was recovered, the Legion found itself threatened with extinction.The insidious attack of the Selenar Gene-Cults on a vast portion of their gene-seed and a viral infestation of the rest of the stored material in combination with combat attrition had left the IIIrd Legion perilously close to being unable to replenish its ranks. To counter the loss of Astartes, gene-seed implantation was sped up and new recruits were rushed to the frontlines. Whether they continued to carry the viral infestation or not, was unknown.Amongst these new recruits was Fabius. As an Apothecary, it fell to Fabius to collect the genetic material of the fallen and ensure the creation of new generations of Astartes. However "the Blight," as the viral infection came to be known, ruined that material. Yet nobody knew how to detect the viral infection, let alone cure it. Thus Fabius began his research, looking to rid his Legion of an infection that unleashed tumors in their gene-seed organs and ultimately destroyed them.Since the Emperor's Children, as they were renamed by the Emperor after the Proximian Betrayal, had always looked to perfection, they worked tirelessly to better themselves. It is no wonder that Fabius, after working on the corpses of many of his Legion brothers, found a way to test for the Blight. True to their ideals, every infected brother Astartes was executed. Hardened by such decisions, Fabius continued his research and mapped the genetic make-up of the whole IIIrd Legion in search of a cure for the Blight.When he added his own samples to that endeavour, he discovered that he too had been infected by the virus. This could not be allowed to determine his fate, for he was too important to die, his research too important to end with his execution for imperfection. Thus he switched the samples and had one of his fellow battle-brothers killed in his stead. Bending all his efforts to finding a cure, he performed more experiments and secretly took genetic material from his dead brothers to prolong his existence.When the IIIrd Legion finally rediscovered their primarch on Chemos, Fabius hoped for a cure for himself. That was not to be. The Emperor's Children Legion was saved instead with the infusion of a new and pure source of their gene-stock extracted directly from Fulgrim that created new gene-seed. Fabius, however, could not be saved in this way, for the gene-seed causing his tumors could not be reengineered and then reimplanted. It could only be cloned, and the Blight always reasserted itself in the new samples in time to prevent a clean re-implantation.Fabius kept himself alive by mechanical and scientific means, always trying to find a cure. When the Daemon of Slaanesh possessed Fulgrim during the Drop Site Massacre at Isstvan V, Fabius estimated that he had about one Terran year of life left to him. It was at that time he finally resolved to go to his primarch and confess all that he had done. Where science had failed, he had turned to the arcane to prolong his life. For was he not worthy? Had he not helped his brother Astartes attain perfection?