Nocturne Dragons are a strange breed. Whenever light strikes their bodies, they are frozen in whatever position they were in. This leaves them vulnerable and they rely on camouflage to keep themselves safe. They are often mistaken for statues when in this frozen state, but Nocturne dragons do not actually turn into stone. Rather, they merely idle until the sun goes down. At night, these dragons come to life, proving themselves to be powerful fliers, although little else is known about their true behavior.

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.

Hartol is usually found at the top of the biggest cathedrals in the world. Like an ordinary nocturne dragon, he freezes when sun hits his body. Hartol takes advantage of this, and flies to the top of big cathedrals and sits there like a gargoyle. This is his hobby, anybody who has seen inside of his "special" book will see that it keeps record of what day he reached a certain cathedral. Because of his hobby, he rarely has any time to speak or be with other dragons.