Bletchley Park in Milton Keynes, England, has recently been restored at great cost, and remains of abiding interest to the public. This was where the computer was born and the German Enigma code was broken during World War II. In this action-packed novel, Chief Wren Sally Evans is found murdered on the grounds of Bletchley Park. The year is 1941, and two police detectives are given the unenviable task of solving the crime that occurred in Britain’s most secure code-breaking establishment, a place where questions are not welcomed. “Druid” is a German spy for Himmler who is parachuted into England to authenticate the communications to Germany by Abwehr agents already embedded in England. But upon his arrival, his mission is changed. “Baron” is a Soviet spy working at Bletchley Park for the first secretary of the Soviet Embassy in London, and he knew Sally Evans. The climax plays out within the pastoral Buckinghamshire countryside. Who committed A Murder at Bletchley Park?

Spring, 1941. The Second World War has entered a dangerous phase, with British ships being torpedoed in the Atlantic and nightly bombing raids on major ports. At Bletchley Park, top secret home of the nation's code-breakers, the race is on to crack the German Enigma code and thus prevent further naval and military losses. This endeavour is suddenly very close to home for Frederick Rowlands, blind veteran of the Great War, when his daughter, Margaret, who works at 'the Park' as a cryptographer, is arrested on suspicion of betraying secrets to the enemy. Then a young woman is found murdered, and Rowlands is drawn into a deadly battle of wits where he must decode a series of clues that will lead him to the killer and enable him to discover the real traitor at Bletchley Park.

Bletchley Park was where one of the war’s most famous – and crucial – achievements was made: the cracking of Germany’s “Enigma” code in which its most important military communications were couched. This country house in the Buckinghamshire countryside was home to Britain’s most brilliant mathematical brains, like Alan Turing, and the scene of immense advances in technology – indeed, the birth of modern computing. The military codes deciphered there were instrumental in turning both the Battle of the Atlantic and the war in North Africa. But, though plenty has been written about the boffins, and the codebreaking, fictional and non-fiction – from Robert Harris and Ian McEwan to Andrew Hodges’ biography of Turing – what of the thousands of men and women who lived and worked there during the war? What was life like for them – an odd, secret territory between the civilian and the military? Sinclair McKay’s book is the first history for the general reader of life at Bletchley Park, and an amazing compendium of memories from people now in their eighties – of skating on the frozen lake in the grounds (a depressed Angus Wilson, the novelist, once threw himself in) – of a youthful Roy Jenkins, useless at codebreaking, of the high jinks at nearby accommodation hostels – and of the implacable secrecy that meant girlfriend and boyfriend working in adjacent huts knew nothing about each other’s work.

In "the lost world of Bletchley Park", Sinclair McKay tells the story of the park from its pre-war heyday, to its late 20th century resurrection to play host to both Antiques Roadshow and the Queen. With special access to the Park's archives, the 200 illustrations include many previously unseen and unauthorized photographs of Wrens and codebreakers minding machines or simply relaxing by the lake soaking up the sunshine.

This beautifully presented slipcased collector's edition of the best selling title, The Lost World of Bletchley Park is a comprehensive illustrated history of this remarkable place, from its prewar heyday as a country estate, its wartime requisition and how it became the place where modern computing was invented and the German Enigma code was cracked, to its post-war dereliction and then rescue towards the end of the twentieth century as a museum. Removable memorabilia includes: 1938 recruiting memo with a big tick against Turing's name Churchill's 'Action this day' letter giving code breakers extra resources Handwritten Turing memos Top Secret Engima decryptions, about the sinking of the Bismark, German High Command's assessment of D-Day threat and the message announcing Hitler's suicide A wealth of everyday items such as authentic theatre posters, a map of Bletchley Park, canteen menus, teleprinter print-outs of codes, the Colossus paper tape spooled through machines Newly redesigned interiors with 25% new content, high end slipcase package featuring removable facsimile documents, this is an essential purchase for everyone interested and wanting to experience the place where code-breaking helped to win the war.

Mystery crime fiction written in the Golden Age of Murder 'As pretty a piece of work as Inspector French has done... On the level of Mr Crofts' very best; which is saying something.' —Daily Telegraph Dr James Earle and his wife live in comfortable seclusion near the Hog's Back, a ridge in the North Downs in the beautiful Surrey countryside. When Dr Earle disappears from his cottage, Inspector French is called in to investigate. At first he suspects a simple domestic intrigue—and begins to uncover a web of romantic entanglements beneath the couple's peaceful rural life. The case soon takes a more complex turn. Other people vanish mysteriously, one of Dr Earle's house guests among them. What is the explanation for the disappearances? If the missing people have been murdered, what can be the motive? This fiendishly complicated puzzle is one that only Inspector French can solve. Freeman Wills Crofts was a master of the intricately and ingeniously plotted detective novel, and The Hog's Back Mystery shows him at the height of his powers. This new edition of a classic mystery is introduced by the crime fiction expert Martin Edwards.

In 1939, several hundred people - students, professors, international chess players, officers, actresses and debutantes - reported to a Victorian mansion in Buckinghamshire: Bletchley Park, known as 'Station X', where enemy codes were deciphered. This title details their remarkable achievements.

The untold story of Bletchley Park's key role in the success of the Normandy campaign Since the secret of Bletchley Park was revealed in the 1970s, the work of its codebreakers has become one of the most famous stories of the Second World War. But cracking the Nazis' codes was only the start of the process. Thousands of secret intelligence workers were then involved in making crucial information available to the Allied leaders and commanders who desperately needed it. Using previously classified documents, David Kenyon casts the work of Bletchley Park in a new light, as not just a codebreaking establishment, but as a fully developed intelligence agency. He shows how preparations for the war's turning point--the Normandy Landings in 1944--had started at Bletchley years earlier, in 1942, with the careful collation of information extracted from enemy signals traffic. This account reveals the true character of Bletchley's vital contribution to success in Normandy, and ultimately, Allied victory.

In 1942, with a black-market chicken tucked under his arm by his mother, Leo Marks left his father's famous bookshop, 84 Charing Cross Road, and went off to fight the war. He was twenty-two. Soon recognized as a cryptographer of genius, he became head of communications at the Special Operations Executive (SOE), where he revolutionized the codemaking techniques of the Allies and trained some of the most famous agents dropped into occupied Europe. As a top codemaker, Marks had a unique perspective on one of the most fascinating and, until now, little-known aspects of the Second World War. This stunning memoir, often funny, always gripping and acutely sensitive to the human cost of each operation, provides a unique inside picture of the extraordinary SOE organization at work and reveals for the first time many unknown truths about the conduct of the war. SOE was created in July 1940 with a mandate from Winston Churchill to "set Europe ablaze." Its main function was to infiltrate agents into enemy-occupied territory to perform acts of sabotage and form secret armies in preparation for D-Day. Marks's ingenious codemaking innovation was to devise and implement a system of random numeric codes printed on silk. Camouflaged as handkerchiefs, underwear, or coat linings, these codes could be destroyed message by message, and therefore could not possibly be remembered by the agents, even under torture. Between Silk and Cyanide chronicles Marks's obsessive quest to improve the security of agents' codes and how this crusade led to his involvement in some of the war's most dramatic and secret operations. Among the astonishing revelations is his account of the code war between SOE and the Germans in Holland. He also reveals for the first time how SOE fooled the Germans into thinking that a secret army was operating in the Fatherland itself, and how and why he broke the code that General de Gaulle insisted be available only to the Free French. By the end of this incredible tale, truly one of the last great World War II memoirs, it is clear why General Eisenhower credited the SOE, particularly its communications department, with shortening the war by three months. From the difficulties of safeguarding the messages that led to the destruction of the atomic weapons plant at Rjukan in Norway to the surveillance of Hitler's long-range missile base at Peenemünde to the true extent of Nazi infiltration of Allied agents, Between Silk and Cyanide sheds light on one of the least-known but most dramatic aspects of the war. Writing with the narrative flair and vivid characterization of his famous screenplays, Marks gives free rein to his keen sense of the absurd and wry wit without ever losing touch with the very human side of the story. His close relationship with "the White Rabbit" and Violette Szabo -- two of the greatest British agents of the war -- and his accounts of the many others he dealt with result in a thrilling and poignant memoir that celebrates individual courage and endeavor, without losing sight of the human cost and horror of war.

The dramatic, untold story of the brilliant team whose feats of innovation and engineering created the world’s first digital electronic computer—decrypting the Nazis’ toughest code, helping bring an end to WWII, and ushering in the information age. • Winner, Institute of Electrical and Electronics Engineers Middleton Award for "a book ... that both exemplifies exceptional scholarship and reaches beyond academic communities toward a broad public audience." • A Kirkus Best Book of 2022 • Planning the invasion of Normandy, the Allies knew that decoding the communications of the Nazi high command was imperative for its success. But standing in their way was an encryption machine they called Tunny (British English for “tuna”), which was vastly more difficult to crack than the infamous Enigma cipher. To surmount this seemingly impossible challenge, Alan Turing, the Enigma codebreaker, brought in a maverick English working-class engineer named Tommy Flowers who devised the ingenious, daring, and controversial plan to build a machine that would calculate at breathtaking speed and break the code in nearly real time. Together with the pioneering mathematician Max Newman, Flowers and his team produced—against the odds, the clock, and a resistant leadership—Colossus, the world’s first digital electronic computer, the machine that would help bring the war to an end. Drawing upon recently declassified sources, David A. Price’s Geniuses at War tells, for the first time, the full mesmerizing story of the great minds behind Colossus and chronicles the remarkable feats of engineering genius that marked the dawn of the digital age.