Now you see her, now you don’t! Nancy, Ned, and George attend magician Dan Devil’s show, and witness his assistant’s magical disappearance—except she doesn’t reappear! Seems Nancy can’t even go on a date without stumbling upon a mystery. In searching for the missing assistant, Nancy goes on a magical mystery tour of Dan Evil’s home and runs into a very hungry anaconda! Rather than become snake food, she agrees to become Dan’s new assistant—but what if she vanishes too?