Adeptus Custodes - Era of Baleful Premonitions, M40-M41: The Mind Thieves (Unknown Date.M41) - For twenty standard years, Shield-Captain Tybanus Lencilius pieces together scattered clues until at last he unearths an insidious scheme by a conclave of Radical Thorian Inquisitors to steal psykers destined for the Emperor's table and slowly starve the Master of Mankind. Sensing a deeper level still to this perfidy, Lencilius continues his investigations with cold, deliberate patience until at last he has concrete proof: the Inquisitors have struck a deal with High Lord Sennaca, who is contriving to hide their activities in exchange for being allowed to sell the stolen psykers on to wealthy Imperial nobles for exorbitant fees. At last the Shield-Captain is able to release his pent-up fury, assembling a combined force of Custodians, Sisters of Silence and Imperial Assassins to pull the corrupt operation up by its roots. Neither the Thorians nor Sennaca, nor any of his inner circle, survive the vengeful purge that follows.The Years of Madness (Unknown Date.M41) - A time of strange omens and ominous whispers engulfs Terra, beginning with the disappearance of the notoriously conservative Captain-General Galahoth. Battling the stagnation of Galahoth's rule, the Adeptus Custodes find themselves facing a shocking increase in cult activity -- both heretical and xenophile -- throughout the Sol System. Doomsday sects trigger queue-wars between the pilgrim tribes within the Emperor's palace itself, and the Custodians are forced to exercise their authority in the bloodiest fights they have seen in centuries. Reports from the Dark Cells cite a growing sense of agitation amongst the hidden inmates, and numerous support servitors have to be destroyed by the Shadowkeepers after they exhibit sudden, violent madness. Worse is to follow as possession is revealed amongst a sub-sect of the doomscryers themselves, though not until the false predictions of the fallen psykers send Captain-General Andros Launceddre to his death at the Battle of the Gilded Pyre. It is amidst this climate of spiralling paranoia and danger that Captain-General Trajann Valoris is elevated to command the Ten Thousand, and he wastes no time in taking steps to regain ironclad control of Terra's defence.To Stand Against the Storm (999.M41) - In the wake of Valoris' rise to power, the Adeptus Custodes enjoy their most proactive century of martial and covert action since the fall of Goge Vandire. They annihilate dozens of hidden cults, purge the polar underhives of Terra, eliminate a vermillion-classified xenos threat amidst the Plutonian void-fortresses of the Sol System, and launch thirty-two separate extra-solar interdiction strikes. Several, it is rumoured, even utilise shattered spars of the Webway to reach their targets. As word reaches Terra of ever increasing Warp Storm activity, and cries for help sweep in from every corner of the galaxy, Valoris assembles the High Lords of Terra to discuss their response to this gathering storm. Yet it is at that moment that word reaches their closed session of an incredible disturbance on the surface of Luna, of demigods battling through the airless void at the head of great armies, and of a Primarch restored by the strangest of roads. Roboute Guilliman has returned on his Terran Crusade, and Valoris knows that nothing will be the same ever again...