Swallowtail Dragons are graceful and quick flyers, much like their namesake bird. They are capable of precise aerial acrobatics, and can reach very high altitudes. Because of this, humans observing these dragons are often astonished at how large they are when confronted up close. A Swallowtail’s diet consists of insects and small mammals plentiful in temperate forests. These dragons are also made remarkable by their paper-thin wing membranes, which allow light to pass through, creating an astonishing effect on starry nights.

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.

Ambrosia acts the youngest of the dragons in Damian's cave, but seems the wisest. She spends her days practicing her flying techniques and maneuvers, usually colliding with other dragons in the process. Despite being clumsy, she has a sharp eye for others who put themselves in danger and often accompanies Eugenia to the mountains to make sure she doesn't get carried away with her activities with the other Speckle-Throats. One of her tails is very slightly shorter than the other, which affects her coordination to a small degree.