Hulder

A hulder is a seductive forest creature found in Scandinavian folklore. (Her name derives from a root meaning "covered" or "secret".) In Norwegian folklore, she is known as Huldra. She is known as the skogsrå (forest spirit) or Tallemaja (pine tree Mary) in Swedish folklore, and Ulda in Sámi folklore. Her name suggests that she is originally the same being as the völva Huld and the German Holda.