Horse Dragons have equine-shaped bodies and hooves instead of claws, which allow them to be fast runners. They specialize in running takeoffs, which are quicker than taking off from a stand-still. Horse dragons are able to stalk their prey from the ground then quickly execute an aerial attack for the kill.

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.

BonBonon is a quiet dragon. He's one of the less clever dragons in the cave, and has convinced himself that he's a horse. His master doesn't mind, because she loves horses, and can ride him. The other dragons, however, find him very stupid for believing that he is a horse. They feel that dragons are much better than horses, and that it is an insult to be in the same vicinity as such an animal (unless said animal is being eaten). Poor BonBonon has gotten so much hate toward him, that he has just stopped talking.