Dark Heresy - Ordo Portis
Scintilla is the capital world of the Calixis Sector of the Segmentum Obscurus, and is a thriving Imperial hub that supports the largest planetary population in the sector. It is dominated (some observers say “shared") by two vast hive cities, Hive Sibellus and Hive Tarsus, into which the vast majority of the planet’s groaning population are crammed. Despite the dominance of the two great hives, the “offspring” communities of Ambulon and Gunmetal City contribute significantly to the planet’s economic function. Scintilla is a world of splendours where the wealthy and powerful compete with ruthless appetite. Astonishing magnificence abounds, from the wondrous fashions of the hive nobility to the towering spectacle of the hives themselves. Landmarks like the Lucid Palace and the Cathedral of Illumination are famous throughout the sector.
Although Scintilla was a fixture in the lives of the Acolytes due to it being the base of operations for Inquisitor Graves, it was rarely the focus of much of the Acolytes’ activity. In a future glimpsed through the doors of Haarlock it eventually came under protracted siege by the malevolent Slaugth.