Take on a clandestine mission for the intelligence services to find a mole and help your country. But which country? Follow a trail of cryptic clues & directions sent to your mobile phone as an honorary spook. Show yourself a true patriot and help the nation in its hour of need. Learn the back routes & backchannels of spycraft. Visit dead-drops, check for signals and work out the key to decipher a cryptic message that will make you a hero or a villain. It’s your call. This 2+ hour adventure through the shadows is a journey, not a race. There are endless opportunities to step off the trail for breaks & refreshments or to explore points of interest at your leisure. The route is chosen for its beauty, relative quiet and historical interest. Our directions are playfully disguised but not hard to follow. Our clues are artfully contrived but always staring you in the face.  All you need is your phone and a steady nerve. * Starts & Ends: Trafalgar Square * Distance: 6.5km