The Death Ravens are a relatively unknown Chapter having spent much of their history seemingly outside of the the greater Imperium. The reasons why are very much unknown to many, but during the Centurion War it soon became apparent that the Death Ravens were a Chapter unlike many others. While other Chapters may maintain a facade of humanity despite their transhuman state the Ravens are utterly divorced from the humans they once were. Whatever gene-seed was used in their creation has turned them into inhuman monsters who live only for the thrill of battle and the slaying of their enemies. Imperial commanders have found out, to their cost, that for the Ravens even their supposed allies can become victims of their unrestrained violence.