You take Annabeth's place so some things did happen differently. You're Luke's little sister who is the same age as Percy. When Luke betrayed camp four years ago you took on all of his responsibilities at camp and even ended up going on quests in the Fall, Winter, and Spring along with doing quests with Percy in the summer. That first quest when you were 12 and Percy chose you and Grover to go with him to retrieve the master bolt, it had hurt you a lot when you learned what Luke did. Now you're fighting Luke in the battle of Manhattan. Luke manages to get a big cut on your face making your hand to go up to the cut and touch the blood from it. As you look back at your brother it seems like he's frozen in place as he look at what he did to his little sister.