Vampire Dragons are members of the undead. They sustain themselves by drinking the blood of others. It is said that they are only “alive” at night, and seem dead or asleep during the day, as they cannot endure sunlight for long periods of time. Vampire Dragons can only reproduce by changing the eggs of other dragons, puncturing the shell with their fangs and injecting venom that kills the baby inside.

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.

Unlike her name, Nightmare is a kind dragon compared to her species. She is not one for biting and changing the child of a supposedly loving pair into a bloodthirsty monster. Nightmare would have, however, never turned out like this, if it weren't for the fact that her first bite had killed the egg. The dead hatchling's body had struck so much sadness into her that she swore she would never bite an egg again, and stuck to a more peaceful, less violent way of life.