Emily discovers that humans are making clones of the Olympians! There are already some on the loose, if Jupiter finds out then her world will be destroyed. Emily and her friends journey back to earth to stop the clones but what seemed a simple task no longer makes any sense. Paelen is charged with burglary and Diana has been seen burning up houses, Pegasus is a famous race horse and if they got Emily, the flame of Olympus, and copied her DNA, everything would be over. Everything they had ever fought for. She has to stop it, and fast!
Joel, Paelen, Pegasus and Emily are a gang. Emily and Joel are from earth while Paelen and Pegasus are Olympians. As the Flame of Olympus it is essential for Emily to stay protected at all times, that's why Alexia had to come too, even though her and Emily don't get on.
These books are great stand alone books, as I discovered when I read Pegasus and the New Olympians, I had not read any of the others yet but I was still able to get the gist of what had happened so far.