Lexicanum The Assignment Agency

Amon Tauromachian was a member of the first circle of the Legio Custodes during the Great Crusade and the Horus Heresy.[1b] He was regarded as one of the greatest members of the Custodes.[1b][2]


Amon was present at the Ullanor Triumph, manning a checkpoint alongside fellow Custodes Haedo Venator and seven members of the Silent Sisterhood. PrimarchMagnus of the Thousand Sons was impressed by Amon's ability, predicting that there were 'great things ahead for [him]'.[2]

He was also present at the Council of Nikea. He was one of a group who explained to the skjaldKasper Hawser that he was a spy sent by the Thousand Sons to infiltrate the Space Wolves.[3a] He was then assigned to guard Hawser and explained the significance of his name.[3b] However, at that point he was being controlled by a Daemon posing as CaptainAmon of the Thousand Sons, the similarity in their names making the task easier. The level of control the Daemon had over him meant that he was unable to take part in the subsequent fight, a fact that he regarded as failure.[3c]

At some point during the Horus Heresy Amon took part in a Blood Game. Ten months after it began he was able to infiltrate the Imperial Palace and came within striking distance of the target, presumably the Emperor.[1a] He then took on an assignment to investigate Pherom Sichar of Hy Brasil, who was suspected by the Custodes of being a traitor to the Imperium. He was about to arrest Sichar when Rogal Dorn intervened and revealed that Sichar was a double-agent working for the Imperium, but had now had his cover blown. Amon suggested that all Imperial organisations should share information to stop this happening again.[1c] One of Sichar's bodyguards - a Lucifer Black - was a real agent of Horus and detonated a bomb that killed Sichar. He then attempted to set off another bomb that would destroy the Planato, but Amon was able to stop him.[1d]


Like all Custodes, Amon Tauromachian's name was formally awarded to him and grew longer as he successfully completed more assignments. His full name (as far as it is known) is written below, complete with a explanation of what each component signifies.[1b]

  • Amon: unknown, possibly birth name
  • Tauromachian: describes the occupation of the blood-line that provided his gene-source
  • Xigaze: site of his organic birth
  • Lepron: house of his formative study
  • Cairn Hedrossa: where he was first tutored in weapon use
  • ten more words
  • Pyrope: name of the orbital where he had his first live combat
  • presumably other names
  • Leng: part of the Imperial Palace where he attempted to strike his target during the Blood Game


The Administratum is the administrative and bureaucratic division of the Adeptus Terra, consisting of untold billions of clerks, scribes and administrative staff constantly working to manage the Imperium at every level, from assembling war fleets to levying taxes. It is the largest of the departments comprising the Adeptus Terra - the mere administration of the Imperial Palace is estimated to involve over ten billion adepts.[1]


The Administratum was created as the Imperial Administration, and was under the control of Malcador, titled the Chief of the Imperial Administration.[Needs Citation]

Billions of Administratum officials on Terra and throughout the galaxy are constantly carrying out population censuses, working out tithes, recording and archiving information, and the million other things that are necessary for the running of the Imperium. Such is its immense size and complex bureaucracy that whole Administratum departments have been lost and forgotten. So dogmatically bureaucratic, whole departments of adepts continue to diligently but purposelessly carry out the role their department was founded for, even after the department has become long obsolete.[Needs Citation]

Of all the Imperium's divisions, the Administratum is regarded as the least prestigious, but its high ranking members are among the most powerful men in the Imperium. Despite its massive inefficiency, the Administratum is so integral to the running of the Imperium, that without it, the whole Imperium would grind to a halt. As a result, the Master of the Administratum is the most powerful member of the High Lords of Terra. Many Administratum positions are hereditary; parents pass on their ranks and positions to their children, who continue the work that had occupied the lives of their ancestors. Typical Administratum adepts labour within gargantuan vaults, sitting at logic-engines and can be considered learned by Imperial standards.[Needs Citation]

Like other non-combatant servants of the Adeptus Terra, the members of the Administratum wear a monastic style of dress, their habits varying in colour according to rank and area of responsibility. The basic color for the lowliest scribe is black - higher-ranking members have increasingly lighter shades of grey, and eventually pure white.[2] While the Administratum as a whole is primarily responsible for all logistical operations relating to the civil aspects of the Imperium, one of its departments, the Departmento Munitorum is responsible for the logistics of the Imperial Guard, organising military tithes, troop movements and troop deployment.[Needs Citation]

Divisions of the Administratum

The Administratum is comprised of innumerable divisions and offices. It is unlikely that any one man, even the Master of the Administratum himself, has an idea of how many divisions exist within the monstrous Administratrum. Each office or department is involved in some specific aspect of administration, including even the administration of the Administratum itself. Most of the divisions are petty and of little interest. Known divisions are listed below:

Ranks and titles of the Administratum

There are countless ranks and titles used within the Administratum; the system is also used within the Adeptus Terra as a whole. Some examples include (in order of rank)[Needs Citation]:

  • The Master of the Administratum, the titular head of the organization
  • The Master Logisticar - Senior position.[10]
  • Adeptus (or Adept), the title of all members of the Adeptus Terra, from the highest ranking to the most petty of functionaries
  • Prefectus (or Prefect), officers and officials
  • Masters, departmental heads
  • Ordinates, minor administrative officials
  • Curators, maintains the ancient records of the Imperium; the rank also requires associated historical and linguistic knowledge
  • Scribes, lowly functionaries responsible for keeping records
  • Ciphers, special form of messengers; they memorize dictation with a single scan, repeating it verbatim when they reach their destination; they have no knowledge of the messages they carry
  • Menials, lowly non-specialized workers recruited from the non-adept population
  • Subordinates, hereditary slaves who serve as engineers, craftsmen, etc, as well as in unskilled occupations


  • 1: Codex Imperialis (1993), pg. 48
  • 2: Warhammer 40,000: Rogue Trader (1987), pg. 140
  • 3: Imperial Armour Volume Eight - Raid on Kastorel-Novem, pg. 7
  • 4: Codex: Tyranids (3rd Edition), pg. 41
  • 5: Codex: Eye of Terror (3rd Edition), pg. 13
  • 6: Codex Imperialis, pg. 22
  • 7: Imperial Munitorum Manual (Background Book), pg. 3
  • 8: Warhammer 40,000 6th Edition Rulebook, pg. 139
  • 9: Dark Heresy Rulebook
  • 10: Codex: Adeptus Custodes (8th Edition) pg.12
Symbol of the Administratum[9b]
An adept of the Administratum[1]

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