Help Special Agent Damburger to find the stolen ring of the Duchess of Mayfair.Your urban adventure will take place in Mayfair. Equipped with your special agent's kit (map, UV lights and other gadgets), you will have to solve puzzles and to open hidden safe in order to track the thief and find the stolen ring. You will have one hour to complete your quest.Only if you need it, clues and hints will be provided by walkie-talkies...