Hidden in the Wildan Encyclopedic Masterpiece Exploring Western China

This is an encyclopedic masterpiece that explores western China, and it is also a mysterious book that travels through the vast fog, wind and sand. An ordinary young man, a literary young man, and a foolish young man, rely on a half-human skin map to enter a mysterious foreign land. In a conspiracy-laden and thrilling atmosphere, make good use of mathematical decryption methods to embark on a treasure hunt of wisdom and courage.