Read the excerpt from "Echo and Narcissus." Once there was a fairy named Echo who lived in the forested mountains of Greece. She was well liked by the gods and goddesses she served except for the occasions when she would not stop talking. Her chatter, her desire to share every detail of her life, and her endless gossip were often annoying. This excerpt contains which mythical element? featuring nonhuman characters explaining the natural world teaching a lesson addressing opposites