Daydream Dragons are the hosts of daydreams and fantasies. They spend the majority of their time sitting on clouds, dropping daydreams down into the minds of people passing by. Humans who live near Daydream Dragons must be especially careful not to let their thoughts wander, or they could end up spending hours or even days in a trance-like waking dream state.

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.

Fooper Treble is a very pleasant but spacey dragon. He and his mother, Gold Staff, share many traits, but he has his father's charm. He and his sister, Flyleaf Treble, do not get along. She picked on him since he was a hatchling, and he has never forgiven her. Fooper's best friend is Zeke Ark, the son of Blake Ark and Clara Oakzen. They talk about many things, but their favorite topic is the cute dragon girls that live in the cave. Fooper seeks romance in his life, which he has found with Rose Ark. She makes him smile, and the two are married and hoping for children.