Nebula Dragons are nocturnal creatures. With the best eyesight to be found, they are often seen staring into space. Each dragon tends to observe a particular nebula and will eventually change their colors and patterns to match it. As the nebula changes over time, the dragon changes with it. The more intricate the design of the nebula, the better chance an individual has of attracting a mate. It is said that the markings on no two Nebula Dragons will be exactly the same.

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.

In the dark night skies of the deserts in Mirsapia, Si'nak is flying. He soars above the dry lands and to make an interesting show to the animals that live there. But in daylight, Si'nak is sleeping in the caves of the Uncita clan. Night is this dragon's life, and he was born knowing it. His egg was laid at twilight. The clan adopted him at night. Si'nak's survival depends on nighttime, because that is when he hunts and drinks. This dragon would not produce children without nighttime. Females who claim him must understand that Si'nak will only act like this. Besides the obsession for night, Si'nak is a quiet dragon. He can be seen counting the stars and drawing pictures in the sand with his claws.