Conan Doyle’s relics include numerous letters, diaries and creative notes. The relic documents show that Conan Doyle was not only a famous detective novelist, but also had great interests in various research fields. He has strong interests. For example, he is not only an ophthalmologist, but also a historian. He has campaigned for the reform of divorce laws and even served as a detective himself like the protagonist of his novel! In a yellowed leather folder, there is recorded the first story written by Conan Doyle in his life - a fragment of the story of a hunter catching a tiger. What is shocking is that Conan Doyle was only 6 years old at the time! Among the many letters collected by Conan Doyle, many were sent to him by readers. Some readers hoped that he would become a real "Sherlock Holmes" and help them solve the "mysteries" in their lives. Documents reveal that Conan Doyle's greatest act of charity in his life may have been fighting a 17-year legal battle against a murder suspect named Oscar Slater and finally clearing his name. In 1908, with very flimsy evidence, the British police accused British man Oscar Slater of murdering a Glasgow woman. Slater was first sentenced to death, and later commuted to life imprisonment and forced labor. Slater, who was unjustly imprisoned, felt deeply unjust about himself. He managed to get in touch with Conan Doyle and asked the latter for help. After careful investigation, Conan Doyle found that Slater had obviously suffered an injustice. However, British police refused to rehabilitate Slater. Conan Doyle waged a 17-year "battle" for this, and finally in 1927, Slater was acquitted in prison. Incredibly, although Conan Doyle was a novelist with a scientific mind, he also believed deeply in the theory of "elves and ghosts". Documents show that Conan Doyle spent almost 250,000 pounds on these metaphysical researches throughout his life. , his superstitious belief in the theory of "elves" enabled him to obtain certificates issued by many witchcraft organizations, and at the same time, he was "cheated to death" by two naughty teenage girls. In 1917, 16-year-old British girl Essie White and 10-year-old Frances Greaves took several photos of themselves in a glen in Cottingley, Yorkshire. Some of the photos even contained... Several little people in white clothes with wings were dancing, and two little girls claimed that what they photographed were some dancing "elves". At that time, Conan Doyle completely believed it. In the 12th issue of "Strand" magazine in 1920, the fooled writer wrote seriously: "The dancers in the photo are obviously the legendary elves. Their The appearance brings magic to every deep mountain and valley, and we may have romantic adventures during any walk in the countryside." Conan Doyle also wrote many articles about this matter.