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.

The Pleasant family is one of three notable pirate families under Sevra's watch. They got their name from the jovial attitude they display whilst ambushing and, consequently, wrecking ships. It doesn't seem like they have particularly ill intent, just that they don't much care what happens to the sailors they intercept.

This is especially true for Skullduggery. She has absolutely no concept of the term "consequences" and isn't bothered by the screeching of drowning sailors. Skull is a very energetic and ambitious individual. Although she always aims to have fun, she places a healthy amount of priority on efficiency as well. If "having fun" means coming away with less loot, she's willing to cut play-time short.

As the matriarch of the Pleasant family, Skull likes to lead by example. Hatchlings learn their pirating skills by watching her and accompanying her on raids when they get older. Skull is fiercely protective of her family and will stop at almost nothing to keep them from harm.