Enigmas. Things that cannot be understood; things that must be unravelled and unriddled. Things that are not what they seem.

This series is, in many ways, about enigmas, but here we're talking about a literal one: the Enigma machine. This is the story of the codebreakers of Bletchley Park, including Alan Turing, who broke the German cypher and helped to end the war. But it is also the story of what we can and cannot know, and how little secrets beget bigger ones...

Contributors to this episode: Michael Smith, Sir Demot Turing, Colin Matthews, George Jennings, and Jenny Radcliffe.

This is the second episode of The Town That Knew Too Much, written, produced and presented by Nick Hilton.

The music is by George Jennings, based on The Planets by Gustav Holst. The entire score for the series is available to stream on Spotify.

This is the second part of a 7-part series available on all good podcast platforms. You can find out more about the show on Twitter, Instagram or Facebook – just go to @thetownpod – or visit www.thetownpod.com for episode notes and more information. If you’ve enjoyed the show, please go to your podcast producer and leave a rating and review.

The Town That Knew Too Much is a Podot podcast, for more information visit podotpods.com.