"The Madness of Mr. Lister" is the ninth book in the "Captains All" series by the famous English writer William Wymark Jacobs. In this book, the author tells the story of the main character, Mr. Lister, who suffered a terrible tragedy that led to his noticeable mental changes. It is reported that after this tragedy, Mr. Lister found himself in a state of insanity, and he was even taken to a mental hospital. However, over time, thanks to the help of his captain friends, he begins to recover his health and mental state. In this book, the author explores themes of friendship, mental health recovery after tragedy, and willpower. "The Madness of Mr. Lister" is a fascinating literary creation that will leave the reader enthralled by the experiences and recovery of the main character.