(From the publisher):
The new Clue Club kids get involved in all sorts of mysteries. There are cases to solve when the four friends go roller-skating, go to a birthday party, and even when they are just hanging out at a friend's house. You can try to solve these cases by reading carefully and studying the pictures. How many cases can you crack?
Original title: The Case of the Secret Password
Genre: Fiction→ Children & Young Adult→ Mystery→ Solve-it-Yourself