Dorsal Dragons are so named because they have large fins along their backs that can be raised and lowered at will. They use these fins to regulate body temperature; they raise them to cool off when they become overheated. The bright colors on the fins double as a means of attracting mates.

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.

Purple Fin Flagella is the first elder of the Flagella clan and is the only one who survived the dark days of the Flagella clan, in which many eggs died. Many of the younger dragons come to her to get advice and hear stories of the old days. She is the only elder believes Water Walker Flagella and wants to banish the Vampire Dragons