Shadow Walkers are a strange breed that possess the ability to slip between the planes of reality, becoming immaterial. This allows them to hide in the shadows, either hunting from the concealment of near invisibility or evading enemies. Though they become corporeal to mate or to eat, they spend most of the rest of their lives walking in the shadows. Shadow Walkers are wary creatures, though on dark autumn evenings when the leaves fall to swirl in the chill, rain damp air, they may be seen drifting out from the shadows.

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.

A talented thief hides in the shadows to stalk their prey, but Byth is the shadows. One of the most elusive thieves in the area, Byth loves gold like cats love cream; hunting down each precious nugget like a mole hunts a worm. Dragons jealously guard their hoard when she is in the neighborhood, spending hours, days watching the shining pile only to find that the second their eyelids sink over their darkened irises, that is the second that a chunk of the precious metal disappears. One can sound the alarms, and one can scour the surroundings, but no trace of the gold or the culprit will ever be found. Byth become the shadows, and follows those hunting her, laughing in almost childish glee as they are left wandering in circles of confusion and mayhem. Yet while she takes pleasure from other's misfortune, she cares deeply about those closer to her, and will go to the ends of the earth to help those who she loves.