Not every servant of the Omnissiah is a cold and pitiless thing of iron. Vitali Tychon, Magos and stellar cartographer, was remembered by those who knew him as among the kindest souls in the whole of the Imperium, a scholar who had spent centuries charting the heavens and yet had never lost his sense of awe before them. From the Quatria Orbital Galleries he studied the far deeps of the galaxy, and few living minds understood the shape of the distant void as he did.
Tychon was already ancient by the reckoning of ordinary men, his augmetic body sustaining a lifespan measured in centuries and drawing at last toward its natural close. In the long tradition of his calling he had produced an heir not of the flesh but of the forge, cloning his own genius into a daughter, Linya, who grew to become a stellar cartographer of formidable skill in her own right. Father and daughter worked as one, two brilliant minds bent upon the same great task of mapping the untracked stars.
The object of Tychon's longest study was the Halo Scar, a churning astronomical wound at the galaxy's edge that had swallowed ships and expeditions beyond counting. He had observed and charted it for many years, and it was this hard-won expertise that drew the attention of Archmagos Kotov, who could not hope to cross that barrier without a cartographer who understood its treacheries. And so the Tychons left their quiet observatory and joined the crusade aboard the Ark Mechanicus Speranza, their charts the thread by which the whole venture hoped to find its way.
The voyage would test even their genius, and it would not leave the Tychons unmarked, for the crusade's confrontation with the machine-intelligence Galatea reached at last into Linya herself. Through it all Vitali endured as the expedition's conscience and its guiding eye, a reminder that even in the grim and pitiless order of the Machine Cult there could still dwell curiosity, tenderness and a genuine love of the stars.