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.

Yes, she's called Jack, and, yes, she's a girl. There are those who would find it surprising that she likes the name, and those who make fun of her for having what is usually a boy's name quickly find out. She either hits them on the head with her tail or, if they're too small and might get squished, she "gently" pushes them over.

Jack quickly found her place among Jester's dragons by caring for the young along with the pinks. The hatchlings love Jack, but the pinks don't share the sentiment. Sweet Peach doesn't like the trademark marrow smell, and the pinks don't like Jack's mischievous streak. They say it teaches the hatchlings bad manners. Jack always just grins and goes off to concoct her next prank, usually with several hatchlings in tow.