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.

Being the cave mother is an easier job, which requires a predetermined personality type, and as a result there are many dragons who contest for the title. Milly is one of those such dragons. Being a genuinely nice dragon, her life has no room for lies or gossip, and her marriage prevents her from joining the single masses. The importance of her husband's position means she has no need to work for the cave, as she simply assists him, and the nursery is long overrun, so Milly spends day after day dying of boredom as she talks to pompous snob after pompous snob about their holiday. Milly loves the thrill of work, but the world seems set out to prevent her from doing any of it, as her marriage ,her stupid marriage, prevents all the possibilities of what she could be. Life is an endless stream of repetition of her, and she has settled into a motherly role, yet constantly has to fight for it from newcomers who desire such an easy position.