Explore Secret Stories Hampstead\'s Spooks and Spies Tour, a self-guided interactive walking tour to enjoy whenever you want. This audio tour is part of an Ordnance Survey series of bite-sized, tongue-in-cheek stories. Expect nutty nature, smelly smugglers, raucous royals you get the idea. Underneath Hampstead’s leafy surface is a secret world of surveillance and spies. Visit the building where Agatha Christie lived next door to Soviet spooks and their chief recruiter. Stroll through the woodland which features in espionage books and see the modernist flat built by the namesake of James Bond’s most famous adversary. Total length: 1.94 miles; Suggested age range: 7+ Purchase this Tour (and more) in the Secret Stories App, available for free download from Android Play and Apple App store. You\'ll find more details of the tour and what it contains in the app!