Grey Knights - A Refuge From the Storm: In Malcador's absence, the Emperor had prepared a concealed fortress-monastery on the moon of ringed Saturn called Titan. Hidden under layers of rock and shrouded by powerful technologies, the structure had eluded discovery by the Traitors while their fleets were in the Sol System, their armies focused on Terra where the fate of the Imperium was unfolding. After departing the Imperial Palace, Malcador's charges parted ways.The four unaugmented Human lords created the framework for the Inquisition, the Imperium secret police force and intelligence service, tasked with rooting out heresy from within the Imperium. Malcador took the eight Space Marine psykers to the fortress on Titan through a Webway portal. There he set about laying the foundations of a new order of Astartes.Everything had been prepared for the coming of the Sigillite and the battle-brothers; an army of servitors maintained the fortress while cryo-vaults hidden at its core contained vast stocks of specially-prepared gene-seed based on the Emperor's own genome rather than that of any primarch. Hundreds of thousands of recruits had also been gathered from the worlds of the Imperium. These would become the raw material that Malcador would fashion into the Grey Knights Chapter.Malcador's servants had chosen each of these recruits carefully; the recruits' minds deeply probed to see if they bore even the slightest hint of Chaos corruption. The recruits were also chosen for their latent psychic gifts, so that once Human flesh was implanted with Space Marine gene-seed organs they would grow into potent Astartes psykers, with a unique control over their abilities.To find so many suitable specimens Malcador's servants had searched the hundreds of thousands of planets of the Imperium, taking aspirants from the seed worlds of the Loyalist Legions as well as from the ranks of the Imperial Army. Some were even taken from primitive worlds newly restored to the Imperium, their hardy people ignorant of the sky-war that had brought them to Titan but willing to do what the gods demanded. For those first days Malcador guided the eight in the formation of the Grey Knights, overseeing the awakening of the great citadel and its new Chapter. However, events were coming to a close on Terra, and as the Traitor armies gathered for a final blow against the Imperial Palace, Malcador was summoned back to the Emperor's side to carry out his final duty.Before he departed, the Sigillite selected Janus from among the eight to continue the work he had begun. So it was that Janus became the first Supreme Grand Master of the Grey Knights. Malcador's final act on Titan was to weave a complex psychic ward about the moon to shield it from the mayhem raging across the galaxy. Whereas before the Sigillite's artifice had merely hidden the fortress-monastery known as the Citadel of Titan from detection, it now concealed the entire planet.Wrapping Titan in a bubble of reality, Malcador sent it into the Warp, where it would ride out the final battle for the Imperium. His rites complete, the Sigillite returned to Terra to face his final fate in service to the Emperor.These are the eight original founding Grand Masters of the Grey Knights, remembered as "The Titans" as Malcador called them, for each of their names once belonged to one of the Titans of ancient Terran mythology:NameOriginal NameLegionIanius (Janus)Revuel ArvidaThousand SonsKoiosTylos RubioUltramarinesIaptoSeverian, "The Wolf"Luna WolvesSatreVardas IsonBlood AngelsEpimetheusUnknownDark AngelsYotunUnknownSpace WolvesOgenUnknownRaven GuardKhyronUnknownUnknownCrius (refused the position)Garviel LokenLuna Wolves