Despite their great size and strength, Celestial Dragons are a peaceful breed named for their spectral, starry appearance. Little else is known about them, as they spend the vast majority of their lives partially phased out of the plane of existence through the use of powerful magic. Celestial Dragons are thought to assume their corporeal form only long enough to reproduce or to die; the rest of the time, they resemble living, breathing constellations, impervious to all physical and magical harm.

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.

Wallner is a member of the "Action Group", a club of sorts that was initially formed on a lark. Years later, it is a genuine club with a registration and contains a lot of esteemed dragons with memorable achievements to their names. Wallner's ticket to membership was his assistance in the local historians' society decoding Nevino Manuscript No. 6D, and he wasn't even asked to. In fact, he hadn't planned to be corporeal for long, and he was only looking for a replacement wand for his mate and wandered into the wrong cave. Among Action Group members, he's known for being good at paying attention when he appears to be sleeping and being silent during committee meetings save for asking a really good, well-thought-out question that causes the meetings to run long. Wallner has been offered membership at the historical society, but he feels he's too irresponsible.