The manifest horrors of this species' anatomy and desires are only compounded by an implacable and utterly alien intelligence, and an ability to exploit human corruption and terror to meet their own needs. Mercifully few in number, it seems that they are not given to open warfare and show no interest in acquiring territory. Instead they favour stealth and secrecy to attain their goals, while their seeming physical near-immortality and powerful technology makes them dreadfully powerful opponents when encountered. From the depths of the void their tenebrous ships slip unseen into Imperial space to work their evil, infiltrating isolated outposts and void stations to glut their hunger before disappearing, or trading artefacts of their baleful arts to human Renegades in exchange for slave stock