Picasso made a plate with “Hibou Noir Perche”.
Picasso also made a couple of films in which he drew lines on transparent glass. The camera was shooting on the other side. The result was then the same as the mirror image. Maybe we should follow the instructions in the Clue 5 title and turn the map into a mirror image. Or keep the map in place and turn the lines we draw into a mirror image. The result can be surprising..