The Last Cambridge Spy: John Cairncross, Bletchley Park Mole and Soviet Agent

John Cairncross was a member of the Cambridge Ring of Five, a group of spies who leaked sensitive documents to the Soviet Union, including atomic secrets and raw decrypts from Enigma and Tunny. This biography is the first ever written about him and uses newly released material to tell his story.

Format: Paperback / softback
Length: 336 pages
Publication date: 27 January 2022
Publisher: The History Press Ltd

John Cairncross, a prominent figure in the annals of twentieth-century espionage, stands as one of the most damaging spies of his era. As a member of the notorious Cambridge Ring of Five, he betrayed the trust of his country by leaking highly sensitive documents from esteemed institutions such as Bletchley Park, MI6, and the Treasury to the Soviet Union. Among the invaluable secrets he divulged were the initial atomic secrets and raw decrypts from Enigma and Tunny, which had a profound impact on the outcome of the Battle of Kursk. Cairncross' involvement in espionage extended beyond his role in the Cambridge Ring. In 2014, he made a notable appearance as a secondary, yet crucial, character in the biopic of Alan Turings life, "The Imitation Game." Despite the extensive biographical exploration of the other members of the Cambridge Ring, Cairncross has largely been overlooked by both academic and popular writers. Despite the obvious interest in his story, he remained a mysterious figure, shrouded in secrecy until now.

The Last Cambridge Spy is a groundbreaking biography that sheds light on the life and espionage of John Cairncross. Drawing upon recently released material, this book offers a comprehensive account of the enigmatic spy's journey. It delves into his early life, education, and career, providing insight into the circumstances that shaped his decision to become a spy. The book also explores Cairncross' role in the Cambridge Ring of Five, detailing his contributions to the espionage effort during World War II.

One of the most intriguing aspects of Cairncross' life is his close association with Alan Turings, the brilliant mathematician who played a pivotal role in breaking the German Enigma code. Cairncross served as Turings' secretary and confidant, and his proximity to the Enigma machine allowed him to gain access to highly sensitive information. His role in the decryption of German messages during the Battle of Kursk was instrumental in the Allied victory, and his contribution to the war effort is widely acknowledged.

Despite his significant achievements, Cairncross has remained largely unknown to the public. The Last Cambridge Spy seeks to rectify this by providing a detailed account of his life and espionage. The book is filled with previously unpublished anecdotes and insights, offering a fresh perspective on the man and his actions. It sheds light on his relationships with other members of the Cambridge Ring, including Guy Burgess, Donald McLean, and Robert Watson-Watt, and explores the complex dynamics that shaped their espionage efforts.

In conclusion, John Cairncross was a remarkable spy who played a critical role in shaping the course of World War II. The Last Cambridge Spy is a must-read for anyone interested in espionage, history, or the fascinating story of Alan Turings and the Cambridge Ring of Five. By shedding light on the life and espionage of Cairncross, this book provides a valuable contribution to our understanding of the twentieth century and the role that individuals played in shaping its events.

Weight: 372g
Dimension: 130 x 198 x 29 (mm)
ISBN-13: 9780750998604
Edition number: 2 New edition