Oh Gods... He's GONE!? (A Percy Jackson Fan-Fiction)

Khara Chase is a daughter of Poseidon and adviser to the gods. She is "sisters" with Annabeth Chase. When I say sisters I mean Khara was adopted by Annabeths dad. They say they're twins because they look exactly alike (except for hair and eye color) and have the same birthday. What happens when Khara is ordered by her...