One Flew Over the Koronus Expanse
The Stygian Reavers
This wolfpack is known to hunt in the area of space around Footfall. The Stygian Reavers are known agents of Chaos and have been declared both apostate and enemies of the Imperium. Their actual size and strength are unknown. Their ships are often crewed by mutants and guided by sorcerors with enough charisma to prevent mutiny. The degree of their organization is circumspect, they are usually encountered in small groups and do not seem to have enough cohesion to form a battlefleet. They rarely fight to the death, but are known to lay ambushes and traps for larger ships. Like cockroaches they have been nigh impossible to exterminate.