Fafnir a dragon protector of gold in Norse mythology, Regin's and Otter's sibling and the son of Hreidmar. He was killed by the brave Sigurd, who then bathed in the victim's blood, rendering him immune to harm except for a little area between his shoulders where a linden leaf stuck tenaciously and kept the blood from touching. In the Volsunga Saga, Fafnir murders his father, Hreidmar, and steals his dead brother Otter's skin, which is hidden inside a gold chest. To protect his treasure, Fafnir changes into a dragon.
