You will be welcomed by Professor von Broubelstein. Unfortunately, his new invention was stolen and he needs help to find it back. You will be launched in a race against the clock to find his secret formula back. In small groups you will have to ask passengers, go into shops and use a roadbook. This rally calls on the skills of various and complementary teams; a sense of observation, deduction, research, questions, and activities. A lot of pictures will be taken as well. Which team will be first to discover the secret formula?