The lighting Thief -chapter 1

The summary of chapter one was Percy Jackson 's classmate went to the museum to learn about the battle of gods and titan . Percy was explaining what happen in gods and titan in the battle . Then it was lunch time and percy's friends was sit at the water fountain and nancy falls in nancy says that ''percy push me''. People  think nobody push her . What happen after is percy and mrs. dough  had a talk and fight and percy had won . I wonder what will happen next in chapter two? Was mrs dough was real or monster ? How did nancy falls in the water?