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.

Will Water is a Female Deep Sea Dragon. She deeply loves the sea. Her parents are traitors, yet her mother was the Queen. Her mother gave her up when the entire Deep Sea population "wanted" her parents for disobeying their own rules. She is very loyal and a great companion. Will Water is a kind, sweet dragon, unlike her parents who will do anything to have power. Her favorite food is freshly caught trout wrapped in seaweed.