–From The First Book of Indoctrinations
Sepheris Secundus is the largest exporting planet in the Calixis Sector. Without its massive exports of ore, metals and fuel, the trade of the Calixis Sector could not function. Sepheris Secundus relies on imports of food from the sector’s agri-worlds. Its vast population makes it a potential supplier of Imperial Guard recruits, although a relatively small proportion of the population would be suitable because of universally poor health, along with the risk of exposing the subjugated masses to the possibility of life outside the mines.
Sepheris Secundus is a world of immense mineral wealth, city-sized mines, billions-strong hordes of serfs and the sharpest divide between the elites and the masses in the Calixis Sector. It is a grim place of snow and twilight, feral mutants and lives spent in back-breaking labour deep beneath the ground. The Imperium’s eagerness to exploit Sepheris Secundus’s vast resources is such that the planet is at the same time the richest and poorest world in the sector.
Sepheris Secundus’s climate is cold and stormy, its surface obscured by a mantle of cloud. It has no oceans save for the small polar seas, so the moisture in its atmosphere comes from below the crust, spewed out from failed mine workings or natural geysers that pockmark the planet like pustules. Its surface is split between the vast open mines like deep scars in the crust and the dense, snow-laden forests broken only by the ruins of failed kingdoms that tried to claim Sepheris Secundus in the past. With its endless blizzards, widespread ignorance and antiquated methods for doing everything, Sepheris Secundus would be a meaningless backwater were it not for the enormous mineral wealth beneath its surface.