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.

Reisara is the daughter of RoslarbRisa and Alfrheillon. She's very crabby and haughty. Unlike her mother, shes very unhappy with who she is. She is mortified whenever she rips one, spends most of the time deflated. Luckily for her, most of the other dragons in the cave have enough sense not to tease her about it. The only one who dares tease is Heillon, her half-brother. They have the traditional brother-sister relationship. They hate each other most of the time.