Green Dragons are also sometimes called “earth” dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

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.

Caelug ar Dineth is the smallest of the earth dragons from the clan. But he has the most fun in causing avalanches and earthquakes. As he don't want to hurt other dragons or humans he went deep in the mountains for it.

Caelug was the 6th egg from the cave that was raised by Drachenbraut. He is named in the Elvish tongue Sindarin. His name means "earth dragon". "Ar Dineth" is added to indicate that he belongs to Drachenbraut's clan.