Scholastic: The code-breaking effort of World War II was one of the biggest secrets of the entire war. How did you become interested in it?
Candace Fleming: I took a trip to Bletchley Park because I was in London. And they had a big graphic on the wall in their main building. It was a part of their museum where they talked about personnel.
What surprised you when you visited Bletchley Park?
I always thought Bletchley Park was about people like Alan Turing [a mathematician and cryptographer who helped crack the Enigma] and Tommy Flowers [an engineer who invented the Colossus code-breaking machine], those big famous scientist and mathematician names that we all know.
What I didn’t realize was that there were at least 9,000 people working at Bletchley Park by 1945, and the majority of them were young women between the ages of 14 and 19. I was like, “What? Teenagers? Teenagers really did this?” They were kids changing the course of history without even realizing it and not even being able to talk about it. I wanted to know about some individuals, how they felt, what they did. I went in search of those stories and I found so many. It was hard to pair it down to 10!
How did you learn more about the girls who worked at Bletchley Park?
So much of it was the most secret that it could be kept. Everybody signed the document that said you’re not allowed to talk about it with anybody. It was almost the 1970s before somebody actually broke the Official Secrets Act. It was one of the heads of Bletchley Park. And then everybody sort of went, “Wait, we can talk now!” And they began telling their stories.
The folks at Bletchley Park went out of their way to find the former employees—who were senior citizens by now. They took affidavits [a written document that the writer swears is true], they tape-recorded the women’s stories, they got copies of diaries and photographs. Because of them, I had quite an archive that I could mine.
Once I figured out the different jobs that needed to be done to break a cipher, I searched for a young woman from each one of those tasks. And then I wanted them from different time periods, because Bletchley Park stretched from 1939 to 1945. I wanted a young woman from each one of those times, and ones from different socio-economic backgrounds as well.