Echo

Echo was a young and beautiful Oread who was kind-hearted, loving, and happy. She is the daughter of Artemis.

History
Echo was one of the Oreads to be created by Artemis. She remianed alone in the mountains of Greece while Zeus ravished the other Oreads. While she remained happy in the woods, she took her eyes on Narcissus. She followed Narcissus into the woods and grabbed him. Yanking as a rag doll, Narcissus ordered her to put him down. Echo was heartbroken for what the young man and vanished into the woods.

Echo remained quiet, but she felt that there was something wrong with Narcissus' actions. She found out that Narcissus was cursed to be in love with his own reflection. She tried to enter his home, but realized it was too late. Narcissus already kill himself to put an end to the curse, causing Echo to be devastated. She lived in the woods and denied the love of any man or god because she couldn't let go of her feelings for Narcissus. This was when Pan, the God of the Wild, came to her as a gift. Echo refused to have him and kept on running away. Pan became angry and killed Echo. Pan felt regretful for what he did, and swore that it would never happen again.

The Giant's Throne
She was mentioned when Cyllene explained her story to Grover Underwood about Echo and that she held a grudge against Pan.