Hellhorse Dragons are foul-tempered, spirited creatures with tempestuous and violent dispositions. Torrents of scorching flames erupt from their bodies and can easily set their surroundings ablaze. Highly aggressive and territorial toward other dragon species, Hellhorses will tolerate others as long as they believe the association to be beneficial. Such alliances are tenuous in nature and frequently short-lived, as the slightest disagreement can easily escalate into a full-out brawl.

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.

Bryll Bervirius 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.

Bryll is a second-generation member of the Hellpack, of the female Hellhorse Bervirius line. Her mate is the wild-born Horse named Brian. She tries to hold herself up as an example of strength and discipline to younger generations.

Unfortunately, her temper usually gets the better of her, resulting in the surrounding jungle gaining a few more bare patches where she's taken her bad mood out on a group of innocent trees.