The novel is a fictional art form. Although it can bring entertainment and inspiration to people, it may also have some negative effects. 1. Fictions may mislead people's values and worldviews. Through fictional plots and characters, they may cause people to make wrong judgments and prejudices, thus affecting people's thoughts and behavior. 2. Fictions may affect people's emotions and mental health. Some novels may contain violence, erotic content, or describe some painful or sad scenes that may make readers feel uncomfortable or depressed, thus affecting their mental health. 3. The novel may reveal the dark side of society and the ugliness of human nature. If the readers do not have enough psychological quality and moral standards, they may be affected by these negative information and even lead to disappointment and disgust towards society and human nature. Therefore, although novels are an excellent art form, we should also be vigilant and read them in moderation to avoid being negatively affected.