Deep Sea Dragons, as their name suggests, spend most of their time in the darkest depths of the sea. They have a bioluminescent dorsal spine that serves to attract prey and communicate with their own kind. As with many deep sea animals, they generally eat whatever they can manage to bait. They rarely leave the ocean floor, surfacing only during breeding season. When they do choose to travel to the shallower depths, they avoid bright lights and will only come up far away from shore.

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.

As an egg Paul was found drifting lazily where the coast and river meet. No parents could be found to Maple-Flank's knowledge, so it was soon taken home for proper incubation. From there Paul went straight into the water basin, and then the nearby pond. He always seemed so gloomy as he gazed longingly into the horizon, and at one point was taken to the ocean itself right as he started to mature, and was given the choice to leave. Indeed, he did enter the waters... But he never left the coast. Since then he can be found along the coastline at night and deep into the dark waters during the day.