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.

Zadako is a foreigner from lands far away from the clan's cavern-valley complex. He decided to settle down with them for a year or two before continuing on with his travels; it's uncertain what the purpose of the voyage is, but he seems content enough to postpone his journey. He has a very thick accent and can sometimes be hard to understand, but he's quite good-natured and will happily take some of the more adventurous hatchlings out exploring the forests and glades nearby.