To write a good mystery novel, you need to master some basic skills and methods. Here are some suggestions: Establishing a clear logical framework: Creating a clear logical framework in a novel can help the reader understand the plot and the behavior of the characters. This could be achieved by establishing the relationship between the main characters, setting up puzzles and clues, constructing logical reasoning processes, and so on. 2. Maintain character continuity: Every character in a novel should have their own motives and goals, and these goals and motives should be consistent throughout the story. If the character's actions and motives don't match, the reader may be confused. 3. Use rich details and hints: By using rich details and hints, you can increase the interest and difficulty of the novel. For example, one could hint at a character's inner thoughts and emotions by describing the character's expression, language, and actions. 4. Grasp the rhythm and tension: In the novel, you need to grasp the rhythm and tension to make the plot and the behavior of the characters continue to advance and make the readers feel nervous and excited. 5. Pay attention to the details and the revelation of the truth: In the novel, attention should be paid to the details and the revelation of the truth so that the reader can reveal the truth through the details and reasoning process. This required the author to have strong reasoning ability and logical thinking ability. Pay attention to reader feedback: Finally, it is very important to pay attention to reader feedback. The author should communicate with the readers frequently and adjust and improve the plot and character settings of the novel according to the feedback of the readers. In short, writing a good detective novel required the author to have strong logical thinking and reasoning skills, pay attention to details and reveal the truth, and pay attention to reader feedback.