I-I can't choose the most touching plot in a book because everyone's touching point is different. However, I can provide you with a brief description of the plot to help you choose the most touching plot. If you like mystery novels, you can read the complete Sherlock Holmes stories. There is a famous plot: Sherlock Holmes discovered a hidden clue when he was studying a case, and it took him several weeks to solve it. In the end, he concluded that the clue was provided by a stranger who left a card with the words " If you successfully solve this case, please tell me your name." This plot allowed you to feel Holmes 'wisdom and courage, and also made you feel the importance of trust and mutual help between people. If you like science fiction, then you can read " The Three-Body Problem ". One of the famous plots is that there is a war between the Earth civilization and the Three-Body Civilization, and mankind is facing a huge threat. During a battle, a female scientist named Ye Wenjie discovered a loophole in the Three-Body Civilization and sent a message to the Three-Body Civilization for help. This message eventually became one of the most important events in human history. It allowed us to see the potential and hope of mankind, and it also allowed us to feel the connection and interaction between technology and human civilization. If you like horror novels, you can read Dark Forest. There is a famous plot in it: Humans have discovered the existence of intelligent life in the universe and began diplomatic negotiations. However, these intelligent life forms thought that humans were a threat and were prepared to destroy them. In a fierce war, a female scientist named Wu Jun discovered a secret in the universe. It made humans understand the limitations of human civilization and made us feel the tenacity and courage of human beings in the face of fear.