Men and women who had dedicated their entire lives to proving primitive superstitions false discovered that their own beliefs in empiricism and rationality were in fact founded upon lies. Of all the Traitor Legions, however, it was the Word Bearers that made the greatest use of allied Warp cult groups, and it was at Calth where they were first openly employed. Nothing fancy–just a Chaos Lord with a plasma pistol and Thunder Hammer. However, there is no denying that they are accomplished survivalists and valued additions to any warband. It is from a combination of these two sources that the information presented here was collated. Some have even more shadowy connections to the mysterious Officio Assassinorum, the secret organisation that provides unparalleled adepts of murder for the High Lords of Terra. Through skill, determination, and daring a Frost Father has risen to a position of leadership among his tribe, and earned the right to lead his warriors into battle during the winter season. Those members of the cult captured on the surface were executed by the Astra Militarum. The populations of these worlds were notoriously warlike and primitive, and it took many generations to educate them in the Imperial Truth, for native ancestral superstitions were never far from the surface of those recently illuminated by the Emperor's Light. Tzeentch Cultists summoning forth daemons of the Lord of Change. Over the next two centuries, House Glaw was investigated multiple times, as they had never fully escaped suspicion. Whatever hope a Cultist may have derived from their profane worship is inevitably false. Most terrible and potent of all were those magi who, by way of pacts with the unnameable denizens of the beyond, could call forth legions of fiends, things dubbed "daemon" by those few who witnessed them and survived to recount the nightmare. That said, getting a blob of 30-40 of these guys within 12″ of your opponent, along with a re-roll aura can be pretty deadly. If Blackstone Fortress is a hint of things to come, 40K could be seeing more independent machines as new Unaligned constructs escape the confines of the Fortress and filter out onto the battlefields of the 41st Millennium. The second is power, as the strength of a cult's membership united is often far greater than what an individual would possess. History has yet to relate the names of all of the cultic forces the Word Bearers committed at the Battle of Calth where Chaos Cultists were first used in large-scale military actions, and it is likely that as the Underworld War ground on, those factions brought to Calth as part of the Conjunction altered greatly. One of the worlds inside the Unbound are known to garrison is the corrupted Hive World of Ablutraphur, whose vital manufactorum makes wargear for several armies of Chaos, including the armour plating worn by members of the Unbound. In 290.M34, during their long war against the Slaaneshi Hollow Cult and its many-limbed pleasure god, the Grey Knights lost almost the entire 7th Brotherhood. More so than even the sanguinary cults, these groups attract insane and desperate individuals to their ranks, those who have lost everything, become the most degenerate Heretics or follow the wildest of deviant creeds. So did cults rise up and dedicate themselves to the red-handed Renegades. Invariably, this person was either highly charismatic or otherwise able to exert an inordinate degree of control over the cult's members. Two Inquisitors -- Helgrund first, and then Hetris Lugenbrau in 239.M41 -- arrived on Maginor and battled the Mystic Path, eventually coming into conflict with Quixos himself. Sometimes, cult forces tens of thousands strong were herded towards an enemy city or fortress simply so that Iron Warriors Warsmiths could survey the foe's fortifications and map their fire plans without expending their own forces, both Legion and mortal military auxilia they deemed of greater value.