A type of fairy that lives underground in the hills and fields where nature remains unspoiled. They are thought to have originated in Scotland, but appear in folklore throughout western and northern Europe. Both male and female elves appear young and beautiful, and enjoy eternal life. It is said that if a human sees one, he or she will fall in love at first sight. Elves have a hollow in their backs and a long cow's tail. They are a gentle folk who love music and sometimes dance on the hilltops.