A small clan of this secretive Voidborn Death Cult came to Footfall in 795.M41, in the wake of their persecution by the Inquisition in the Calixis Sector. As well as serving as killers-for-hire, the Astral Knives’ doctrine is to ritually assassinate those whom omens and the Emperor’s Tarot indicate to be corrupt, so as to preserve the God-Emperor’s protection on those who must brave the Warp. Since coming to Footfall, the cult has quietly flourished, and has gained a shadowed reputation as a faction both dangerous and powerful. As such, the Astral Knives are cultivated as contacts by many of those who know of their existence, often in the hopes that a steady stream of rich murder-compacts will prevent a sacrificial fate befalling them in turn.
No one ever asked. Nor cared to. The cult keeps to itself, if you need a knife, you hire, if you don’t, you surely don’t ask questions, as the group is terribly hard to infiltrate.