Blusang Lindwyrms are quite different from most dragons in that they lack hind legs. In this regard, they resemble snakes, and this is evident in their movement; these lindwyrms slither along the ground, using their forelegs to lift them over rougher terrain. Blusangs are a coastal breed, preferring to live along rocky beaches and in seaside caves rather than sandy locations. They are omnivores who graze on seaweed from time to time, although their primary form of sustenance is fish.

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.

While Cathouse isn't an immediate threat to any human, she torments the ones who camp on her beach by nicking their belongings. There is a sundial firmly planted in a rock a long wading distance from the shore, and she uses it to determine whether a human is "camping" or not. Once a human or group of humans have definitely stayed too long according to the sundial, Cathouse decides they are camping in her territory. She sneaks up on them to steal whatever she can carry with her arms. What she values are food of any kind and small items made of cloth, and she will forego a huge crown studded with dozens of jewels to swipe a headscarf. Some humans run after Cathouse and take their stuff back, although most just dumbly watch her crawl towards the water and take off.