★A children's science game book + detective reasoning story book especially created for children by Wang Ke, the best-selling Chinese mystery writer.
★Its audio version has been played for more than 300 million times!
★Let’s join the China’s Little “Holmes”—— young man Li Changle from Tangcheng, to uncover uncanny and intriguing hard cases one by one!
★Each book has several fantastic detective stories to inspire children’s logical thinking and build up little readers’ reasoning ability!

Totally three volumes in this series: “The Mystical Mechanism Room”; “The Monster and The Taoist Master”; “The Academy in Shadow”.

This series tells the story of Li Changle, a young man from Tangcheng, who has long dreamed about being a detective since he was a boy. When he and his friends faced with one after another uncanny and intriguing hard cases, they were intelligent and observant, and never let go any clue. Therefore, Li Changle and his friends figured out the mystery and found the truth one by one.

Totally three volumes in this series, each is consisted of several detective events. When the truth of the case comes out, relevant science knowledge will be put at the end.

Wang Ke, a post-80s outstanding writer, is a sign up writer for the famous domestic reasoning magazines, including “ZuiTuiLi”, “Goosebumps” and “XuanYiZhi”, etc, and has published more than 3 million words in magazines. His published best-selling works include “The Famous Detective of Tian Dynasty” Series (Trilogy), “Phantom Detective” Series (Trilogy), “BaiYuJie”, “Black Memory”, “The Mysterious Grey Archive”, etc.
His children’s series books such as “The Young Detective Li Changle” Series, “The Starlight Detective Team” Series, “Devil Fighter” Series have been serialized in dozens of children’s magazines in China.

Song Jindong, as a senior art teacher and a member of Tianjin Artists Association, Watercolor Art Committee, "Sketch China" Committee, and Orient Tide comic strip association, has published dozens of cartoon books and has created thousands of illustrations for many books.