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Shagac is a Psion scribe and royal historian in service of Emperor Calus. He was entrusted with the writing of the Chronicon alongside Scribes Tlazat and Ixolt, with whom he shared a rivalry over the style and substance of the text.
In the aftermath of the Midnight Coup, Shagac was one of many Loyalists to Emperor Calus who accompanied him into exile from the Cabal Empire aboard The Leviathan. Alongside Scribe Tlazat, he was appointed as a royal historian and charged with writing entries in the Chronicon, which Calus intended to be a "true" historical source from his perspective in the face of Dominus Ghaul's takeover of the Empire. When The Leviathan was suddenly thrust to the edge of the known galaxy and encountered an unknown presence that began shaking the vessel, Shagac was one of many Psions aboard who suffered ill-effects. While Calus exited the ship in a pressure suit to confront the place of their exile head-on, Shagac and a dozen others lost consciousness before the mysterious assault ended.
Upon Calus's return to The Leviathan, he declared a that he had seen visions of the end and was to be its herald, thus beginning a campaign of pleasure and conquest that saw the recruitment of new Shadows into the ranks of the Loyalists and plots of vengeance against Dominus Ghaul. Shagac loyally followed Calus along this path, but he eventually discovered that his fellow royal historian Tlazat doubted the validity of the Great Revelation and was recording those doubts within the Chronicon. Revealing the treachery to the Emperor, Shagac replaced the executed Tlazat as the lead writer of the Chronicon starting with its six-hundred and second entry. In this entry he condemned Tlazat and set down the "true" historical record of Calus's revelation and intentions behind the recruitment of Shadows.
However, most of the Shadows were soon lost in a failed assassination attempt on Dominus Ghaul. Shagac recorded Calus's despair at the loss of his Shadows and belief that he had ruined them just as his empire had been. He later recorded being present at a meeting between Ghaul and his Advisors Tlu'arg and Ilhali when news arrived of Ghaul's death at the hands of a Guardian of Humanity in the Sol System. Shagac saw a renewed fire in the Emperor that had gone out with the death of his Shadows, and Calus ordered The Leviathan to set course for Sol so that they might find this hero who slew Ghaul and to prepare his automatons for the meeting.
Crafting the "Future"
Following their arrival in the Sol System, Calus set about seeking to recruit the Guardian known as the Young Wolf and others of their kind to his side as Shadows. Shagac and his fellow scribes were instructed to begin writing new chapters of the Chronicon based on future events that Calus claimed he foresaw happening. Amongst the first entries he crafted was one foretelling of a banquet that would be thrown upon the Young Wolf becoming the Shadow of Earth and the speech Calus would supposedly give upon that occasion.
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