Balloon Dragons are so named because they are filled with a gas that makes them almost lighter than air, similar to balloons. However, they are not prone to bursting, as they are covered in tough skin and can deflate themselves if necessary. In addition, they generally are slow moving. They use their gas bladders to float to the tops of trees, where food is more abundant. They can shift their weight from their backs to their fronts, allowing them to reach leaves and fruit.

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.

Belinda Billow has a very bouncy, breezy, yet loving manner.  She often just floats about above the trees near the cave, however she sometimes comes down to let hatchlings, and the occasional mint, jump on her.  She enjoys making the young ones happy, and the young ones just love bouncing on Belinda.  She, on rarer occasions, allows the larger dragons of the clan to bounce her about.  The other dragons know that Belinda only allows this because she's happy when others are, so they are always careful, polite, and honestly thrilled every time she lets them play with her.  Belinda's best friend is Eos Ethelinda and she often finds herself floating in the wee hours of the morning to talk to her.