This is about the detective Sherlock Holmes. One day, the boy came to his help. The boy told a story that happened to his family. His uncle was a letter written on the envelope that KK and inside there is only The Five Orange Pips. His uncle terror And ran up to the locked room upstairs. And filing down box. Burn it into the backyard. His uncle was drinking heavily every day. And 7 weeks later, he died. Police concluded that the accident And this happened to his father as well. And a letter was sent to him. He wanted to help Sherlock Holmes solve the puzzle in this study.