Blood Gorgons
A renegade chapter of Chaos Space Marines created by Henry Zou for his novel of the same name, he did something that defied the very laws of the universe and Chaos and made Chaos marines that actually have half a darn of sense and purpose left in them.
While most Chaos Space Marines lose it and become fun, psychotic maniacs with no greater goal in life then to constantly bathe in the blood of virgins, the Blood Gorgons were boring, kept their minds and did silly things like get shit done.
Created during the Cursed Founding, they decided they weren't being appreciated enough by the Imperium and promptly left to do their own thing. They value their freedom and independence more then anything else and fight fiercely to defend it. This is ironic then when you consider their main ritual practice, the blood bonding. This is when two Blood Gorgons share organs, blood, and other parts of their flesh with each other, having them literally trading their body parts with one and other. This creates a spiritual bond between the two, sharing feelings and sensations. Odd for a chapter that values independence....
Not all the chapter is bonded in such a way. The coven of chirurgeon-witches is a hybrid of apothecaries and chaos sorcerers. They are psykers responsible for preserving the gene-seed of the chapter and creating new space marines and doing the ritual that binds brothers together. Between their lack of bonding and their studies of the deeper chaos arts which the other Gorgons distrust, their is a rift between them and the rest of the chapter.
Such is their devotion to freedom they will devote themselves to no Chaos God nor acknowledge Chaos Undivided. A Greater Demon of Chaos Undivided serves as a patron to the chapter, although it is still afraid of much more powerful daemonic servants of the greater gods.
The colour scheme of the chapter is a burnt bronze. They wear war masks that they claim can scare even daemons.
During the book a warband of Nurgle allied with renegade elements within the Gorgons and attempted to force the entire chapter to turn to the way of Nurgle. It was only through much sacrifice and luck that the Blood Gorgons were able to emerge victorious.