Spitfires are a desert breed of dragon. Their dull brown bodies contrast with their brilliant turquoise markings, and they only blaze brighter when these dragons fight. Spitfires are notorious for their territorial natures, and the wing-edges of most are ripped and tattered before their first year is out. Spitfires are also noteworthy for their brilliant blue fire, which is used not for hunting or fighting, but rather for making glass caves from the sand, in which the dragons can soak up the sun.

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.

Glassbuilder is, as the name suggests, a builder. He uses his fire to melt stone and sand and then licks and claws it into the shape he wants. His Clan's cave is usually referred to as 'the Gemcave' because of his tendency to get jewels from the treasure hoard and set them in whatever he's building.

Being a Spitfire, Glassbuilder is aggressive and territorial, but a little less so than other Spitfires. He is an orphan and grew up in a very mixed Clan, with She Who Sings Flowers, Green Summer Songs and Deeplights as his closest friends and teachers. He is almost constantly arguing with Ghash, the Hellfire Wyvern, who is even more aggressive than him.

Despite being a Spitfire, Glassbuilder rather likes showing the hatchlings and juveniles his work and tries to teach them how to do it.