This activity is a real treat for games addicts and budding investigators. For groups of 4 to 7 of any level, an experiment to test your skills with friends, family or workmates … What is waiting for you? Well, you'll be plunged into a school setting in 1991. You are part of a typical bunch of model pupils, and yet you are sent down to see the principal. Rumours are running around the school that pupils who have already been summoned to the principal's office are acting strangely. You are now allowed 1h to find out why, but above all to escape this very tricky situation… Once a child is 10 years or older.