El calcetin rojo

Why will there be a sock inside the consul's soup? Who fills the forest with filth? How can you start a car without having the keys? Who stole the box with the money?
To find out all this, Commissioner Caramba doesn't need Professor Krötenstein's new intelligence pill: his wits is enough and more than enough.

Want to know if you've found the right track? You'll find out using the Super Detective Magnifying Glass!