Thefts, disappearances, kidnappings: strange things are happening in Cat City! Fortunately, the famous detective Agatha Crispy has just arrived in town. With your help, she will find the solution to all the puzzles! Eight funny cases that require observation and critical thinking. A series of activity books where the child is called upon each time to solve 8 mysteries, each set in a different environment, e.g., at the station, at school, at the bank, in the lab, at the circus, in the museum, etc. The mysteries are independent, but each book has a common theme and always the same heroine, Agatha Crispy. To solve the mysteries, the child must look for details in the picture and answer questions using logic, observation, and critical thinking.