Percy's romance with Annabeth seems smooth and flawless…all on the surface. Although he loves her very much, he feels like something is off. He begins getting mysterious dreams about a girl that's in trouble who he recognizes as his ex-girlfriend, Calypso. Immediately, he feels the magnetic attraction that he can't help. He can't help but need her. He can't help but save her. She's the only one who can make her take her mind off the wrongness between him and Annabeth. She's the only one who makes him feel right inside. And he doesn't know if that's wrong yet.