In the North, all manner of things are attributed to a near-legendary figure: Skald, the mad mage of the North. Everything from good/bad harvests, missing people, cosmic phenomenon, or misplaced boots might be said to be the work of the Mad Mage.
The legends about him are as varied as they are numerous: he supposedly married a dire bear. He is said to have ripped a man's arm off on accident during a friendly arm wrestling competition. Some claim he can turn into fire, or a pack of wolves. They say he speaks all languages, and can change his form to suit his mood.
Whether or not such a man has actually ever existed is a matter of some debate (and often, scorn). Most think him a child's tale, a fictional scapegoat and sometimes, erstwhile protector for those who make their homes in the frosty Northlands of Arvum.