It was previously believed that purple dragons were exclusively female, but this is not the case. Recent environmental shifts have revealed the existence of both genders of this breed. Female behavior is well known; they are primarily herbivores but will eat meat during mating season. On the other hand, very little is known about the behavior and habits of male purple dragons.

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.

HDL is a salesman. For a long time, many dragons thought he was a woman because he sacrificed his moustache to the cavern lurker with an iron fist (and it never regrew), and he doesn't prioritize correcting others, when selling them things is way more important. His initials stand for something different every time he's asked, so everyone save for some of the children (who play HDL Name Bingo) has stopped asking about his name. He says he isn't a seller of any particular thing, but others have noticed that the variety of wares on his trolley has expanded ever since the appearance of Beef the azure glacewing, whom he seems to view as a rival.