Storm Dragons are the masters of the skies. They are excellent fliers and land only to rest and eat. In addition, they have full control of the weather. They are very hot-tempered and easily angered. They will attack any human that bothers them, conjuring strong winds and dangerous lightning.

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.

Tehanu is a powerful dragon, and loves having the ability to start up a good electrical storm. She has a very hot temper, and does this as often as she can find something to be cross about. She gets flyer's cramp in her left wing at times, and that in itself is enough to set her off.

Her best friend is an albatross called Mabel, in whom she recently confided that she had tried to seduce Fearful Asymmetry, who rebuffed her. Watch for avalanches. It hurt.

She is very fond of harvest mice, and sends down a few drops of rain when she sees one in need of a drink. Her favourite food is sushi.