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.

Considered the 'son' of Circe, Hesali is considered the second-in-command of the Von Seggrern clan. Of all the vampires in the clan, he is the most level-headed. He often serves as the voice of the Von Seggrerns and as such gets along with the other dragons of the cave better than most vampires. However, like others in the Von Seggrern clan, he has a deep hatred of the Vondrak clan.