There are many materials for writing a novel. Here are some possible topics and scenes that might be useful: 1. Adventure and Exploration: Exploring the unknown, solving problems, overcoming obstacles, interacting with various creatures and humans can provide rich plots and details for the theme and scene. 2. Love and Romance: The love story described, the romantic encounter and getting along, the quarrels and reconciliation, these can provide emotional and plot support for the theme and scene. 3. Fantasy and Magic: Description of the fantasy world, magic and the use of magical items, mysterious rituals and magical techniques. These can provide a mysterious atmosphere and plot tension for the theme and scene. 4. History and Biography: Description of historical events and the experiences and struggles of people in biographies can provide background and plot support for the theme and scene. 5. Sci-fi and fantasy: describe the future technology and the characters and scenes in the fantasy world. These can provide the atmosphere and plot tension of sci-fi and fantasy for the theme and scene. Society and politics: describe the relationships between different groups in society, political events, and power struggles. These can provide social and political atmosphere and plot tension for the theme and scene. 7. Life scene: describe the daily details of life, interpersonal relationships, family and occupation. These can provide the theme and scene with a living atmosphere and tension in the plot. These are all possible topics and scenes that might be useful when writing a novel. Of course, there are many other choices that can be chosen according to the genre and plot of the novel.