Codebreaking Sisters

Our Secret War
Patricia and Jean Owtram are possibly the only living sisters to have both signed the wartime Official Secrets Act. When war breaks out in 1939, Patricia and Jean join the Wrens, where they quickly pick up Morse code, and are tasked with intercepting enemy messages and feeding them back to Bletchley Park.

THE SUNDAY TIMES BESTSELLER Two sisters, one war and an extraordinary family secret

1939. In the nation's hour of need, brave sisters Patricia and Jean Owtram answered the call of duty.

With their fierce intelligence and steely determination, these remarkable young women would stop at nothing to help crack the Enigma code, support Allied troops, and defeat the Nazis.

Their top-secret mission would finally see the tide of war turn in Britain's favour.

This is their incredible true story.

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.