There was no simple answer to the question of how much money was made by writing novels, because how much money was made often depended on the genre of the novel, the needs of the readers, the market demand, and other factors. The following are some of the types of novels that might make money: Fantasy novels: Fantasy novels usually contain elements such as myths, magic, monsters, etc. They are very popular among young readers. If he wrote a good fantasy novel, it might have a high readership and commercial value. 2. Science fiction: Science fiction novels usually involve future technology, alien creatures, and other topics. They are also very popular among readers. If he wrote a good science fiction novel, it might have a high readership and commercial value. Horror novels: Horror novels usually contain horror elements, ghosts, monsters, etc., which are also very popular among readers. If he wrote a good horror novel, it might have a high readership and commercial value. 4. Romance novels: Romance novels usually contain love stories, romantic plots, etc. They are also very popular among readers. If he wrote a good romance novel, it might have a high readership and commercial value. 5. Sports novels: Sports novels usually contain elements such as athletes and competitions, and are also very popular among readers. If he wrote a good sports novel, it might have a high readership and commercial value. The type of novel that made the most money depended on one's writing style, subject matter, and market demand.