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.

Parasite Positive, or Peep, as the other vampire dragons have ironically named her, suffers from an extreme mutation of the condition her fellow vampires suffer. Her hunger for anything warm and alive is borderline insatiable, and as a result, being exposed to normal dragons drives her into a crazed and cannibalistic state. When lucid, she's shy and timid. She consciously avoids company at all costs, never straying from the small back-cave where the vampire dragons reside. Artemis Cloudfoot in particular is sympathetic to Peep, and takes it upon himself to hunt for her.