The book "The Chestermark Sensation" by Joseph Smith Fletcher is an exciting detective novel written in the style of a "mystery novel". The main character, detective Roger Westiker, must investigate a mysterious murder that took place in a small English town. The author successfully combines complex plot twists with the psychological aspects of the characters, making every page of the book exciting for the reader. "The Chestermark Sensation" is an excellent choice for fans of classic detective stories and lovers of fascinating reading.