Sacrifices ( Percy Jackson sea of monsters fanfiction)

When lylia is running away from monsters she sees people on a hill she calls out to them they kill the monster but she hit her head she cant remember anything from before that night she was able to pass through the barrier to camp half blood. She wants a quest so she can go to the last place that she remembered but they decline her, so she sneaks off with Percy and his gang. What will happen when they run into Luke and his minions will there be any love on the way. What sacrifices will she have to make in order to remember or will she have to make any at all?find out in the book ( based on the movie...... Mostly)