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.

Wer Vakilral Caex is a guardian of sorts. She has devoted her life to guarding a mystical sword, known only as "The Seventh Sword", keeping it safe from harm by hiding it in various places between panes of reality. Her special abilities have made her the perfect guardian for this sacred sword, because only she and Shadow Walker dragons like her can access it in its invisible and hidden state. Wer Vakilral Caex will stop at nothing to protect The Seventh Sword, and so she has been named after the object she protects.