A prologue of about 8,000 words was a relatively common length for web novels. The prologue was the beginning of a web novel. It was used to introduce the protagonist, the background, and set the world view. At the same time, it could also provide the reader with some guidance for the story. When writing the prologue, you need to attract the attention of the readers as much as possible and make them interested in the story. Therefore, the length of the prologue was about 8,000 words, which could achieve this goal very well. Of course, the specific length of the novel depended on the genre, plot, and theme.