Archie Moon is the only daughter of Artemis. Artemis had sent her best Hunter to take Archie to her cousin's house for safe keeping, since she had no mortal father. Somehow, she is still a demigod, though. (Don't ask)
Zoe, take her to Annabeth Chase's house. Let her live with her cousin. I want her to live with one that seems as a sibling to her.
Yes, Lady Artemis
Annabeth Chase was the daughter of Athena and Frederick Chase. After Athena left Frederick, he married another woman. Now Annabeth and Archie lived with the two and their step brothers. Annabeth's step-mother hated the Annabeth and Archie, so at the age of 7, they ran away from their home in Virginia.
Luke Castellan, Thalia Grace, and Grover Underwood found the Annabeth and Archie soon after they ran away. Luke gave Annabeth a dagger, instead of the harmless hammer she was using as a weapon. Thalia gave Archie her first bow and arrow. Then, they all made their way to Camp Half-Blood, where they were attacked by a cyclopes, where they lost Thalia, or so they thought.