Hellfire Wyverns are so named for their foul tempers and fiery visages. Their social structure places all females above all males, due to superior physical characteristics and violent dispositions. Forced subservience of the males causes them to become vicious, petty, antisocial, and passive-aggressive compared to the aggressive and social females. However, orphaned hatchlings raised by foster parents of another species can develop surprisingly even tempers and mellow dispositions, proving that their defining unpleasant nature is, in fact, a learned behavior.

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.

Arianna Coenus is part of the Hellpack, a group of Hellfire Wyverns and Horses that live slightly separated from the rest of the flock. Having started with a few mated pairs made of one of each breed, they take in new wild-born Hellfires and Horses every generation, as mates for their Hellhorse offspring.

Arianna is the mate to the Horse dragon Astuten. She isn't really interested in the "special lineages" or the other things that Anibal said to sway the other founding dragons into joining the Hellpack. She just wanted to be away from the constant hustle and bustle of the flock's main territory, and thought joining the project would help with that.

It was Arianna who found the "abandoned" fort the Hellpack resides in. Of course it wasn't quite so deserted when she found it, but it's amazing how persuasive a Hellfire Wyvern can be when she puts her mind to it.