Well, over a year later, here we go.
Morton Dee, Tjapa's Bookkeeper
Morton Dee was born just over two centuries after the Emperor's Death. His birth polity was a sector-sized Tzeentchian realm, which, at the time, was already being encroached upon by the expanding Tjapan territories.
The boy was the son of two powerful sorcerers, and one with both extreme talent in Warp and outstanding intelligence. However, from the earliest age, he showed little interest in learning their arts, instead focusing on regular sciences, most prominently mathematics. For a while, his parents were tolerant toward this weirdness, but once they saw he refused to learn Warp arts as a matter of principle, they started employing harsher and harsher measures to make him submit, all to no avail. Finally, when he was ten, they had, with great reluctance, summoned a Daemon to either accept their child as a sacrifice, or break him into a proper sorcerer.
The ritual was successful, with Krt'abrbasu, a Greater Daemon on the verge of becoming a Favoured, emerging into the presence of young Morton. However, instead of breaking, the boy pulled out his pen and wrote a Glyph of fiery ink in the air, calling for help.
Help came. That very moment, the boy's true master and mentor, Deridan Clouter, the damned Master of Segmentum Tempestus, emerged into the same chamber. Against the gold-clad Honoured Angyl Prince, neither Krt'abrbasu nor the ritual held any power, and the Lord of Change fled in disgrace.
Having remained alone with the family, the Angyl Prince explained to the parents that the boy is his best student, and has the chance to be the greatest of the Star Father's servants. With these words, the two departed forever, the parents taking solace in the fact that their son is destined for greatness, and Tzeentch reassuring them it was all according to plan.
With the boy now in the Warp, his training was fiercer than ever, but his resolve matched all hardship. In two decades, Morton's influence exceeded that of many Greater Angyls who served Tjapa from the god's first days. But he was rarely seen participating in power gambits and struggles against the Four. His focus has always been on paperwork. Year after year, he balanced the books of the Star Father's realm.
As his age passed three centuries, Morton noticed the backlog growing. Inefficiencies were climbing. The inherent problems of Chaos were exacerbating the issue. None of the half-measures he tried were working. And his god said naught.
He tried (very cautiously) discussing the issue with his superiors, including his old mentor, but none of them would listen. All saw only Tjapa's perfection. Morton Dee realised he must work without and despite them, a task made easier by the fact no one expected the drab clerk to have true ambition.
Maybe he didn't. But for him, he was the best to carry out the Star Father's glory.
Finally, six hundred and twenty-five years after the Emperor's Death, the ritual was complete. Using the writing implements of Malcador Himself, Morton Dee rewrote countless documents to have the same figures. Then, he stamped them with the man's personal seal.
That very second, three hundred and sixty-eight surviving Archive Worlds, filled with holy documentation of both the Imperium and the Star Father's Realms, became one de jure. As soon as that happened, all were sucked to the exact same position inside the Warp, the weight of their affinity toward Tjapa too great to be held back by something as insignificant as the difference between de jure and de facto.
For one hundred and twenty-five days, a vortex raged in the middle of Tjapa's realm. And once it cleared, a sight was revealed to bring a rare smile to the Star Father's face.
All the worlds were now fused into a mass of corridors, all the documentation intact and perfectly filed, with room for thousands of times as much. And in the centre of the newborn Grand Nexus Administratum sat Morton Dee, now one with it. So were the rest of the Administrators, with those who used to oppose him now fused into walls, powerless to do anything beyond their eternal sorting work.
Ever since, never has Morton left the Nexus for more than a few days. Usually, he is filing the next document. A report on boots sent to a regiment, an Exterminatus order; none of it matters. Everything is filed. Everything is kept intact. Five days or five thousand years old, the papers must be available to anyone with the proper authorisation.
It is unclear what Morton's exact rank is. While before the Ritual, he was on the verge of becoming a Honoured, now, the ones who saw him outside the Nexus report an aura on the verge of Exalted. This has never been tested directly, because in all these times, he never once entered combat.
While inside the Nexus, however, him being one with the archives, and, therefore, the Realms of Tjapa gives him power on par with the greatest of Exalted. Some insist that with the inevitable bloating of administration, with all the power, all the divine lifeblood flowing through the corridors, he might be on the verge of a Major God, and only him being always within sight of the Star Father keeps the Daemon Prince from being eliminated as a threat. Even so, reports on the use of that power are tomes on their own, and one of the few reports Tjapa has been known to read personally.
Beyond the filing of documents, Morton's main occupation is composing contracts. While keeping the paperwork running is essential to the Star Father's present, ensnaring mortals and Daemons in a cursed web of Figures, Forms, Torts and Reprisals is what truly ensures his Master's future dominance. For the longest time, his true dream was composing a contract so enticing and seamless, that the Four will have no choice but to sign it, placing themselves under Tjapa's command - or, at least, that the Five will sign it and work together, ensuring the victory of Chaos. It is rumoured Be'lakor himself tried to obtain some of the drafts in preparation for the Binding.
The Bookkeeper had little trouble accepting Be'lakor as the returned Malcador. In fact, he personally gave him "back" the very same implements used for the ritual a thousand years ago. The Shadow Prince accepted these with grace, and in return, as a sign of trust, handed over some of the darker knowledge gathered over the millions of years, to be sealed in the darkest vaults of the Nexus. However, he politely refused to take back his place as the head of the Emperor's Administratum, excusing himself with Morton Dee being better and more experienced at it by now. The younger Daemon Prince took the excuse with but a nod, and buried himself back in the paperwork.
Had the general idea for a while, but wasn't sure how to write it. Then I saw
this omake on another quest, and somehow, it kicked off.
Thanks to
@StormySky for looking it over.
@Durin, an omake.