Officio Assassinorum - Other Temples: There exist two major temples of the Officio Assassinorum that specialise in untraceable kills, although not much information about them is available in Imperial records.The Officio Assassinorum is also known to maintain patronage over numerous minor Assassin temples and death cults scattered across the galaxy. Though they do not have the pedigree of the Vindicare, Callidus, Eversor or Culexus, these temples are just as ferocious in their pursuance of the Imperial cause.Adamus Temple - The Adamus Temple, originally known as the Clade Adamus, was the oldest of the clades of the Officio Assassinorum during the Great Crusade and Horus Heresy. It is unclear whether it has survived into the 41st Millennium as one of the Officio Assassinorum's present temples. Clade Adamus Assassins are master swordsmen and melee specialists, drawing on some of the most ancient blade-master traditions of Old Earth. Adamus Assassins were dedicated to decapitation strikes intended to eliminate an enemy military force's command and control.Venenum Temple - The Venenum Temple trains exclusively in the use of exotic poisons and subtlety in carrying out their mission requirements. The Venenum Temple's stock-in-trade is employing operatives who are the galaxy's finest tox-artisans. Their mastery of poisons is unparalleled outside the Dark City of Commorragh, and the temple's operatives sow within their targets time-delayed toxins that afford them ample time to escape suspicion. Through their temple's apprenticeship they manufacture killing philtres from the most base of components, which allow them to terminate their targets and leave no metabolic trace of the toxin.Vanus Temple - Almost nothing of the Vanus Temple is known beyond its name and the fact of its existence (though the High Gothic word "vanus" means "empty"). The Vanus Assassins are primarily used as intelligence-gatherers and in matters of grand strategy and intelligence tactics they are without peer, their political insight unparalleled by the scholars of the Imperium. The Vanus Temple works to engineer their mark's doom via their consummate command of information. The Vanus Temple wages a far more complex war, taking the art of the stealth kill to the next level. Their modus operandi is to learn everything possible about not only their target but also those closest to them, then to tacitly manipulate circumstances so that their mark's death is brought about by their own folly or -- preferably -- by the hand of a once-trusted friend or comrade. It is the Vanus Temple that the Imperium employs when the revelation of a prominent figure's heresy would cause more damage than the knowledge of the resultant retribution. Many a shining saint or vaunted figurehead has met with premature martyrdom after some secret heresy has reached the ears of the Vanus Temple. Perhaps the best summary of the Vanus Temple's philosophy was stated by Fon Tariel, an infocyte of Clade Vanus, the Vanus Temple's precursor, during the terrible civil war and intrigues of the Horus Heresy: "the cleanest kill is one that another performs in your stead with no knowledge of your incitement."Maerorus Temple - The renegade and now-defunct Maerorus Temple was created in the early years of the 40th Millennium by the Officio Assassinorum to deal with multiple targets simultaneously, such as the command hierarchy of an enemy army, or the members of a particularly widespread Chaos Cult. In order to achieve this, the rogue temple turned to Hereteks to develop the use of illegal Human/mutant/xenos hybrids, including the possible use of Tyranid genetic material, in effect creating living weapons that were capable of absorbing the biomass of victims to rapidly evolve new bio-weapons through self-controlled mutation. This eliminated the need to maintain and utilise standard weaponry as such technology was always subject to failure. Ultimately, such techniques were considered gross, heretical violations of the Imperial Creed and the temple was eradicated when its first and only successful Maerorus Assassin, Legienstrasse, went rogue, believing that her power and near-immortality granted her the right to topple the Imperium itself. She was eventually slain at great cost on the remote world of Opis where she had taken refuge by an Imperial retribution force of Astra Militarum and Imperial Fists Space Marines commanded by Captain Darnath Lysander.Temple Secretum - It is whispered that there exists a "Temple Secretum," an Assassinorum temple named for its dedication to keeping the Imperium's darkest secrets by any means necessary rather than for a preferred method of killing.