Deep in the Scandinavian forest, a lone hunter encounters the most beautiful woman he has ever seen. What he doesn't notice, at first, is the cow's tail hidden behind her. If he treats her well, he might receive good luck in hunting for the rest of his life. If he disrespects her, he will bitterly regret it. In some versions, if a man truly marries her, the tail falls off, and she becomes completely human.
A woman of extraordinary beauty who dwells in forests and mountains, with a cow's (or fox's) tail she tries to hide and, in some versions, a back hollow like a tree trunk. She seduces hunters and herdsmen, able to reward or punish them.
Within the folk and mythological corpus compiled by the Codex Monstrorum, the creature Huldra occupies a distinctive role in the symbolic imagination of its culture of origin. Its mythos articulates primal human anxieties, the mystery of untamed wilderness, and social norms preserved through the lens of bestiary literature.