Black Marrows are named for their dark colored hides which are encased in a distinct exoskeleton. Their skull and the top edges of their spine push out from under the skin as they age. As such, their young need excessive amounts of calcium for this armor to develop. The older a Black Marrow dragon is, the more skeletal their appearance. They often use their skeletal looks to lure in foolish scavengers or terrify predators. These vicious dragons love nothing more than to crack open bones with their stony beaks and eat the marrow inside. Voracious scavengers, Black Marrows will swarm and devour corpses both old and fresh, sometimes even dragging larger finds to the water to allow them to “ripen.” Despite their dreadful demeanour and often horrid stench, Black Marrows are devoted mates and parents.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Demon Of Black Marrow And Bone is an imposing but surprisingly friendly dragon of the night. He mainly keeps company with the Vampire Dragons, admittedly because they are the only dragons who will go near him, but the oldest Vampire, Draculas Pet Dragon, is a close friend to him. Before the other Vampires hatched, the pair were inseparable and had no other friends. Now, however, Demon Of Black Marrow And Bone sometimes feels rather jealous of the other Vampire Dragons. So he was delighted when, one Halloween, he not only succeeded in siring a whole brood of Black Marrow eggs with the Alt Black dragon Proud Huntress of Darkest Night, but also found an abandoned Black Marrow egg. He now has friends of his own in the form of his son Black Marrow Griffon Vulture, the only one of his many children to remain in the Cave, and The Marrow Of Life, who hatched from the abandoned egg and whom he hopes to mate with next year.