Walpurga explains the nature of fairy folk.
The elfmound faded from view within the crystal ball and Walpurga covered the glass once more with silk cloth. “Your intended one has gone to the fairies or the Night Folk as some call them. The Elf Queen lives in the bush and night is the fairies’ time of joy. That is when elf-throngs join in dance and sing boisterously. Only fairy rings in the dewy grass tell of their dancing. But woe to him who by chance happens upon them. He that speaks to them shall die! You must find your maid and remove her from the elfmound. Then she will lose her wings and return to you. But once you step inside the elfmound, you are under their spell and have no power to resist. You must then take on their winged armor and join the ethereal horde.”