(C) Greg Morrison


Welcome to the official site of historian Dr Helen Fry.


Helen has written and edited over 25 books. Her works cover the social history of the Second World War: including British Intelligence and the secret war; spies and espionage; and MI9 escape and evasion. 


She is the leading expert on the 'secret listeners' at special eavesdropping sites by British intelligence in WWII. She has been at the forefront of widespread coverage and in-depth research of the greatest intelligence deception of the war: the bugging of Hitler’s generals at Trent Park, North London.   

Helen is recognised as the official biographer of MI6 spymaster, Colonel Thomas Joseph Kendrick. 

She has also written extensively about the 10,000 Germans who fought for Britain in WWII.



Because of her expertise, she has been involved in a number of documentaries – including David Jason’s Secret Service for Channel 5 and Spying on Hitler's Army for Channel 4. She has conducted advisory work for TV and drama; something which she particularly enjoys, and has covered the major D-Day commemorations in live BBC broadcasts in Normandy. She appears regularly in media interviews and podcasts. 

Helen is proud to be an ambassador for the Museum of Military Intelligence.

She lives and works in London.



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MI9: A History of the Secret Service for Escape and Evasion in World War II 


  This was the forgotten Secret Service of WWII...


  When Allied fighters were trapped behind enemy lines, one branch of military intelligence helped them escape: MI9. The organization set up clandestine routes that zig-zagged across Nazi-occupied Europe, enabling soldiers and airmen to make their way home. Secret agents and resistance fighters risked their lives and those of their families to hide the men.
Drawing on declassified files and eye-witness testimonies from Europe, Helen Fry provides a significant reassessment of MI9’s wartime role, including its relationship to MI6. 


Out in paperback!

At the outbreak of World War Two, MI6 spymaster Thomas Kendrick arrived at the Tower of London to set up a top secret operation: German prisoners' cells were to be bugged and listeners installed behind the walls to record and transcribe their private conversations.


This mission proved so effective that it would go on to be set up at three further sites - and provide the Allies with crucial insight into new technology being developed by the Nazis. In this astonishing history, Helen Fry uncovers the inner workings of the bugging operation.


On arrival at stately homes like Trent Park in North London, high ranking German Generals and commanders were given a `phoney' interrogation, then treated as `guests', wined and dined at exclusive clubs, and encouraged to talk. And so it was that the Allies gained access to some of Hitler's most closely guarded secrets - and from those most entrusted to protect them.

Has this captured your imagination about a secret life, spies, deception and British intelligence in these country houses?



Helen is currently working on a new biography of MI6 spymaster Thomas Joseph Kendrick for publication with Yale in autumn 2021.

If you have interesting spies stories of WWII in your family or any link to the subjects on the website or have archival material, please contact Helen here.