Scandinavian tales and creatures

Once, a young man was out wandering while the sun set. Growing weary, he sat down by a great oak to rest. It wasn’t long before he could see a group of beautiful elven women dancing in a circle together out on a meadow. They moved with ethereal grace, and in the middle of them the elf queen stood. She was tall and fair and bid the young man to join them in their dance, and against better judgment the man accepted. How the dance ended nobody knows, but when the young man was found the morning after he had become quiet and contemplative, his mind still trapped in the dance with the elf queen.