Red Dragons are similar to typical story book dragons. They shoot flames, can fly, etc. However, they aren’t evil creatures as depicted in myths and won’t go around raiding castles, killing knights, or kidnapping princesses. They live in a variety of habitats, from forests to coastlines to abandoned castles, usually in warm climates, and eat whatever living creatures they can find.

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.

Due has long accepted that her mate's first loyalty is to his job, not to her. And she's okay with that, as she knows that nothing ranks higher than that, but that she is his second best. She can live with that. She has embraced all aspects of his life, from isolating herself far away from the plans so he has peace and quiet to work in, regularly cooking, cleaning, sewing and filing for him, and looking after the zombies that his project produces. While it is true that Due is not the role model of a feminist society, fulfilling the traditional household roles, she doesn't mind, as she knows that her husband, while a genius, is incapable of the basic parts of life that she fulfills. Living far away isn't that bad for her anyway, as her children regularly visit her, and she has two zombie hatchlings to keep her occupied throughout the day, as well as some of the dragons who have been mentally damaged by involvement in the project.