The Legend of Hooper's Dragons series content ratings

Content ratings for books in the The Legend of Hooper's Dragons series. How content ratings are chosen

• If A Dragon Cries: An Epic Fantasy Adventure (The Legend of Hooper's Dragons Book 1) PG-13
• The Queen's Vow (The Legend of Hooper's Dragons Book 2) PG-13
• Wings of Fire (The Legend of Hooper's Dragons Book 7)