Abigail Jackson

A new camper that doesn't have the same history as normal demigods. She shows up with no memory of her past. But she has a sibling there already his name is well known to the whole Greek world. You know him as Percy Jackson.

Disclaimer I don't own any of the Percy Jackson series that goes to Rick Riordan. Beginning of heros of Olympus. Instead of seven it is eight anf the Hunters of Artemis has a boy guardian.