There were several reasons why fantasy novels could easily be written in millions of words: 1. Rich story content: Fantasy novels usually involve various elements such as magic, mythology, and martial arts. The plot is complex and changeable, and the author needs to spend a lot of ink to describe it. 2. Many characters: In fantasy novels, there are usually many different characters. Each character has its own personality, experience, and story line, which requires the author to shape and describe in detail. 3. Slow pace: Compared to the fast-paced narration of modern novels, the pace of fantasy novels is relatively slow, requiring the author to spend more space to tell the story, so the word count is relatively small. 4. The reader's imagination needs: fantasy novels often require the reader to use their rich imagination to develop various fantasies and imaginations. Therefore, the author needs to provide more details and descriptions so that the reader can better understand the story and characters. For these reasons, fantasy novels often had a higher number of words than other types of novels, making them one of the favorite types of readers.