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.

Often joining Pax and Klaus when entering a new territory, Killjoy is a shining example of how wrong first impressions might be. His appearance and name are better suited for a ruthless dragon, not one who will help an elderly pair of dragons raise the egg he mistakenly bit, or who will give still-flightless hatchlings a ride on his back if they want.

Rumored to have been a Sweetling egg, Killjoy's passion was never fighting or seeking blood (those were things he had to do to survive, like it or not). Instead, he craved music. Human made or dragon, even birdsong or bubbling rivers could suffice if there was nothing else. Throughout his childhood, he often wished to join the famous Vampire musician, Voltaire, but losing his voice upon maturity quickly put an end to that.

Rather than be bitter over this, Killjoy simply accepted it and moved on, finding a place in the Legion before too long, and can think of no better way to live.