The creature commonly referred to as the Quartermaster, the Quartermaster-General or sometimes just the General, is a hulking brute of a man that spends most of his time in the darkness beyond the adamantine portal that leads into the Sphere. His area of responsibility includes all things related to the supply and maintenance of the Haegum's assets. If Acolytes are in need of equipment or other material resources (save money, which is handled by the Master Exchequer) they must deal with the General; exotic or extensive requests will earn his ire, and so will failing to return specialist items.

To aid him Obsirius has a cadre of servitors of various types to carry out his wishes, and it is these creatures the Acolytes must normally deal with – the Quartermaster rarely shows himself or allow anyone into his presence. When Obsirius does appear in public he always keeps his massive frame shrouded by a heavy hooded cloak inscribed with many dire runes of archaic significance, much like those displayed by the Adeptus Mechanicus. Rumor has it that he really is one such adept, heavily augmented so that his body is no longer fully human. Others will tell you that he's most likely a low-level mutant of some kind, perhaps even an Ogryn (that either is unnaturally intelligent for his kind or has had mental augmentation work done).