Seasonal Dragons take on the characteristics of the season during which they are born. Thus, eggs that are laid in spring match the pink flowers and green buds of spring, and those that are laid in the summer grow to depict the bright green of the forest trees and the yellow of the sun. Eggs laid in autumn display the bright colors of leaves falling from trees, and those that are laid during winter take on the appearance of the icy snow.

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.

Sinfjotli is known throughout the cave for his confusing manner of speech, although he's easier to understand than his mate, Irpa. His origins are unknown, but the majority opinion is that he came with his mate  from the far north. He is much smaller and slighter than his wife, but is sinewy and strong all the same. He is a ferocious warrior and enjoys the sight of battle, but also enjoys the arts just as much and is not too shabby when it comes to carving stone or wood. He's rather laid back and pleasant to be around, as long as you don't meet him on the battlefield.

Sinfjotli is named for the son of the Norse hero, Sigmund, and was also accused of Lycanthropy by King Gudmund in the "Poetic Edda".