Caligene Dragons have long been considered omens of death—reinforced by the skeletal markings on their bodies. They exert a malignant force on the world around them, causing other living things to slowly waste away in their presence. Caligenes favor the seasons of summer and autumn, disappearing entirely from the forests they inhabit during winter and spring. These malevolent dragons are physically weak, though this is countered by their natural stealthiness and alarming speed—enabling them to close in on large targets quickly and silently to create ambushes from which prey cannot escape.

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.

Sphinx is a vicious and downright nasty Caligene dragon, who mostly only socializes with other dragons of her kind. Her presence is generally hated by others, who avoid her silently whenever she shows her face; she's probably fine with this, considering she is rarely anything but rude to others. However, despite this, she does understand when she is in someone else's territory, and can have a degree of respect when her safety requires it. This allows her to just barely stay under the radar so that she can still be permitted access to her Clan's protected territory.

She is probably the least maternal or empathetic dragon of her clan; she never helps others and even blatantly abandons her own eggs.