Vorth Mordrak

Grand Master Vorth Mordrak is the sole survivor of an attack upon the Fortress World of Mortain by Renegade Space Marines of the Red Corsairs. Since that time Grand Master Vorth Mordrak has continued to be protected by the ghostly apparitions of his fallen comrades. Determined to finally lay the fallen to rest, Mordrak has sworn to end the despicable individual responsible for his comrades deaths, the powerful Chaos Lord Huron Blackheart.

History
The Fortress World of Mortain was destroyed at the hands of the Red Corsairs, leaving Grand Master Vorth Mordrak as the sole surviving Grey Knight. The guilt of survival gnawed at him daily, thereafter. The visions of his fallen comrades haunted his sleep, and their voices constantly filled his waking hours. Mordrak submitted himself to the Rituals of Purity, fearful that he had somehow become corrupted, but he was judged to be clean of any taint. But these manifestations continued to plague him to the point of insanity. Mordrak was unable to find neither cause nor relief. The mystery deepened upon the world of Ralindiri. When the Grand Master was separated from his strike force by a teleporter malfunction, Mordrak was left crippled and stranded alone upon the mist-wreathed plains that swarmed with Daemons. His weapon slipping from his nerveless grasp, oblivion closed in upon the doomed Grey Knight. But then, a miracle occurred, as two score Terminators appeared out of the mists and encircled the unconscious Grand Master. Mordrak was found an hour later, surrounded by score upon score of slain Daemons. The Grand Master's deliverance remained unexplained, as well as the identity of his mysterious saviours.

The mystery of Mordrak's enigmatic saviours persisted for some months, until the Grand Master took the field on the Bloodplains of Belos III. This time there were multiple witnesses. The mysterious warriors appeared in all 5 major battles, always fighting in close proximity to the Grand Master. Mordrak caught clear sight of his allies, seeing plainly the apparitions' heraldry - the same blazons borne by those Grey Knights slain upon the world of Mortain. Given from and voice by Mordrak's own psychic might, Mortain's fallen had become bound to Mordrak at the moment of their deaths. Thus the cause of Mordrak's visions were finally explained. Though a powerful force, they were also unwelcome, for they continued to whisper of betrayal and vengeance. Mordrak concluded that only one individual was responsible for their deaths - the infamous Chaos Lord Huron Blackheart, whose Red Corsairs had destroyed Mortain. Gathering a force of Battle-Brothers, the Grand Master departed Titan in order to finally lay the fallen to rest.

Mordrak has set himself no small task, as Huron Blackheart is one of the galaxy's most powerful warlords of Chaos, whose fleets and armies are said to rival those of the Traitor Legions themselves. Mordrak came close to achieving his vengeance on once occasion, but was cheated by the artifice of Huron. This formidable quest is further hindered by his oath to continue carrying out the Chapter's greater mission of responding to daemonic incursions, forcing the Grand Master to set aside his own quest for vengeance, often at the urgings of his spectral companions. In order to free the slain, vengeance must be served, but Mordrak and his ghostly bodyguard continue to hold true to the Chapter's cause.