This book is based on the scene of the Qingming River map and writes about several interrelated detective stories that occurred in that scene. The ingenious design of the puzzle, comparable to the works of the Master of inference.
In the Book of Qingming on the river map depicted in the time of the characters and industry to do a detailed description. Rare is the author of the political and economic military and cultural life is very familiar with the book can be written in the tone of dialogue and psychological activities, dare to write the price of goods directly in the book (many of the books involved in ancient life, the author is afraid of worrying to avoid the specific price).
There were four detectives in the book who had four cases, and finally found the same case. The characters involved in the detective story have so many characteristics: the motive is often because of the feelings between men and women, the humble little people, often have twists and turns of life; Eventually four cases were broken, but the answer was not completely uncovered, leaving enough suspense for the second part of the book.
"Ching Ming River Map Code": The Northern Song Holmes detective, five-star