When a series of novels becomes popular, the author is inclined to come back to the world they created with a new book. Sometimes instead of doing a straight sequel, the author feels they would rather add more depth to their series by telling a new story based on something within the series. Occasionally, different writers will publish a book set in a popular story’s world. These ideas lead to spinoffs: One of the most unique and fun forms of books to read. In honor of the many book spinoffs we love, including the soon-to-be-adaptation Fantastic Beasts and Where to Find Them (a spinoff of J.K. Rowling’s popular Harry Potter series), we’ve put together this quiz! Can you name what popular novels the spinoffs below are based on?