Dark green dragons, once they mature, appear to become an entirely different species. However, this isn’t true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.

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.

Bell That Tolls is the only vine dragon of the Thoiris clan who doesn't guard its territories—rather, she has become a minion of its main enemies, the vampires. She has made her home in the mountains to stay near the vampires; thus, there is another reason not to let the hatchlings go there. Bell will always do anything the vampires wish, but there is one thing she hates about them: they make fun of her name all the time (while she thinks Infected Jaws is much more weird).