Follow the orders of Admiral Guillaume II de Penhoët – called Tors Boiteux – to prevent the English from taking the city of Rennes. Immerse yourself in the Middle Ages and rescue the Bretons by discovering and putting an end to the plans of the invaders. The game starts when you start the discussion with the chatbot corresponding to your mission. After giving him your access code, he will give you the details of your mission. You can then go on an adventure and walk the streets in search of clues. Observe your surroundings, solve puzzles, and interact with your digital companion (as well as your teammates) to complete your quest. The necessary equipment : - A charged smartphone with internet access (1/team mandatory – 1/player recommended) - A notebook and a pencil (1/team)