Elena is the only daughter of the Greek goddess Artemis. Up until the age of seven, she lived with her mother and the Hunters of Artemis. But things started to go bump in the night and she was escorted to Camp Half-Blood where Chiron and Dionysus took her in. When a certain Percy Jackson turns up, she's allowed back into the mortal world. However, things are not what they seem. Who can she trust in a world she has been protected from?