Henri de Boigne, nephew of the famous adventurer Benoît de Boigne, found an old letter from his uncle accompanied by many enigmatic pages. Benoît de Boigne is said to have hidden a secret of his travels to India in the city of Chambéry. Can you help Henri in his mysterious quest? 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)