The classic mystery novel recommendations are as follows: Arthur Conan Doyle: This is a classic story about Holmes and his assistant Watson solving various mystery cases together. This novel had high literary value and scientific attainments, and was hailed as a classic detective novel. 2 "Three-Body Problem"(Liu Cixin): This is a science fiction novel but it also involves reasoning elements. In the novel, the communication and conflict between humans and the alien civilization revealed many complicated problems through reasoning and logical thinking. 3 "Dream of the Red Chamber"(Cao Xueqin): This is a classical Chinese novel and also a mystery novel. Through various plots and details, the novel showed the rise and fall of a family and the complexity of human nature. There were many classic reasoning plots. 4 Detective Conan (Aoyama Gangchang): This is a Japanese mystery novel, the protagonist is Detective Conan. He used all kinds of reasoning techniques to solve all kinds of complicated cases and also revealed many hidden truths. 5 The Silence of the Lambs (F. Scott F. Gerald): This is a mystery novel about an FBI agent trying to crack the conspiracy of a mentally ill person. The novel was full of suspense and reasoning elements, but it also showed the dark side of human nature.