Are you talking about Charles IX?

It is a large-scale original adventure novel and a children's game story book. Duoduo Mo, the hero of this book, is a lame pupil. He dreams of becoming an adventurer and detective. He received a gift from his grandfather on his birthday. This is a dog of royal descent with a long history. Its name is "Charles IX". But it seems that this is not a simple dog, unexpected troubles follow, and great secrets of good and evil are unfolding. Cracking the code, tracking footprints, analyzing and reasoning, (), Tiny Rao, Tiger Shark (Tiger Shark) and Fu You, who are fearless, have cracked maze after maze and case.