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.

Cnaimh has great fatherly instincts; he loves hatchlings, is a dedicated parent and can spend hours playing with them. Unfortunately, most hatchlings tend to run away at the mere sight of him. If they don't, they'll still run as soon as they can smell him. Cnaimh always feels dreadfully hurt at being rejected so brusquely, but there's little he can do about it: he cannot alter his appearance and his smell is, well, an unfortunate complication of his diet. Fortunately Marrow hatchlings don't care for either of these, quite the contrary: the more skull and bones protrude from his skin and the worse he smells, the cooler he is in their eyes. Cnaimh will happily divide his time between his own offspring and any frozen Marrows the family has taken in.