Ariana was found on the border of Camp Half-Blood when she was 5, and remembered nothing before waking up under Thalia's tree. She was found to be the daughter of Asteria, the star goddess, and, hoping to learn about her past, sleeps outside in tree hammock near the lake. The only clue to her past is a silver necklace with a heart, that she never takes off and is very protective of, inscribed, "To the girl I'll see again one day."