Stone Dragons have a tough outer covering made of a stone-like material. They eat rocks, using the minerals they contain for nourishment and to keep up their stone outer shell. They rarely move, and are the heaviest of all types of dragons. Although they have wings, indicating flight ability, no one has ever seen a stone dragon flying.

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.

Ko Lorcan is especially vicious for a stone dragon, and will initiate open hostility with those he finds unworthy or weak. Though he is hostile and impulsive, he is also intelligent, which earned him the rank of one of ten Ko (warriors) to his leader, Khal Zeroun. Lorcan's main duty is to protect Zeroun's territory from would-be invaders, and to advise the peaceful white dragon in the art of battle. Lorcan is slow, but strong, often destroying lesser beasts and dragons with one swipe of his heavy claws, despite their attempts to break through his tough exterior. He always allows an opponent one hit before attacking, and never misses. These two elements combined awarded him the surname "Oneswipe"--One free swipe, one death swipe. Despite his somewhat haughty and hostile nature, Zeroun is extremely fond of his mate, another stone dragon Ka Pierina. The two often spar together in the evenings.