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.

Thundarius is a powerful make gray dragon, with (as his name suggests) a great liking for thunder. He glories in killing his pray using it, rather to the disgust of the white dragons in his cave, and is a bit quicker to rage than most would appreciate. It's supposed that this will eventually lead to a sobering accident, but in the meantime his presence ensures caution in talks, and dragons glance over their shoulders when he walks near them at the evening social bonfires.

Thundarius is also a powerful fighter, and a swift flier. He finds some escape from his temper in very long flights, and will often return an evening having been aloft all day, much calmer than he would be having spent a day at home.

Thundarius, to conclude, does not appreciate reading or writing most of the time, though he has made some efforts to learn. He has come up with several useful ideas on his day-long flights, and these serve to augment his home and it's members. He is not well-liked, but not hated.