Tri-Horn Wyverns are a mountainous species, living in high altitude areas among rocks and snow. The rough and rugged climate has bred a tough and hardened species, prepared to do battle with both the elements and other creatures. Their most distinctive feature is the three-horned crest mounted upon their head, for which they were named; these toughened spikes are powerful weapons, used to battle against predators, prey and fellow Tri-Horn Wyverns. Both males and females of this species fight for territory and resources, and wear scars with pride. However, Tri-Horn wyverns have a soft side beneath their many spikes. They work in loyal packs, of which they are deeply protective; if one can gain their trust, Tri-Horn wyverns can be powerful allies through the mountains.

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.

Luj is a male carrier. He is diligent and quite friendly and loves his job, even more than he loves a good wrestle. It doesn't matter whether his client is a male dragon or human—if they ask and offer compensation, he'll carry them. Sometimes he'll offer his services to certain dragons for free, though they usually haltingly decline. The ladies occasionally snort about the wyvern being unfair to them, but he only asserts that he's a MALE carrier. Some dragons have wondered why Luj does this, if there's any reason other than to get money or some other physical benefit from it. They can't ignore his unusual behavior and wonder if he is lonely and simply wants a companion atop him for a while.