Anagallis Dragons are a medium-sized omnivorous breed. Widespread and adaptable, their easygoing nature enables them to flourish under most conditions. They are social creatures, fun-loving and outgoing, and will readily defend smaller dragons from others’ aggression. They are fond of sunshine, and can often be found basking on rocks; on cloudy or stormy days they are more reluctant to venture out, and will often hide themselves away until the weather is more favorable.

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.

Anagallis caerulea is an oyster, and he hangs out and lives with a band of desert breeds who are also oysters. Everyone calls him K because "caerulea" is long and hard to spell. When the local humans and dragons (and perhaps other species) least expect an attack, the oysters sneak in, swipe a bunch of stuff that isn't under close watch or nailed down, and flee to safety, often without anyone else in the know. Aside from holding the stolen goods, the dragons travel light and never spend more than a week in the same area. Occasionally, the oysters stop for a while and perform a larger theft. K, in this instance, is one of the "mills": he pretends he isn't with the group—easy when most are turpentines—and distracts people or looks out for his band as they carry out their plan. There's about one "mill" per five "verters" in each heist, and K always opts to be the former. When asked why K and his friends are called oysters, he says matter-of-factly, "We're oysters. We 'oist".