What is the "Echo and Narcissus" in Mythology by Edith Hamilton?

"Echo and Narcissus" is a story about the nymph, Echo, and the young man, Narcissus. Although Echo is in love with Narcissus, she cannot have him for two reasons. First, Narcissus is a "scorner of love" who falls in love with himself after seeing his own reflection in the water. Second, Echo is unjustly punished by jealous Hera to never use her voice again--except to repeat what someone else says. For these reasons, Echo is never able to command Narcissus' attention and love.