Determined to stay on in London, despite having to give up her PhD program in MIT's mathematics department, Maggie makes friends and takes in roommates to cover her cost of living while looking for work. She reluctantly takes a position as a secretary at Number 10 Downing Street, knowing that her intellect could be better used as a codebreaker in the War Department rather than typing up the prime minister's memos.
There are two important people in Maggie's life who are not what they seem, and in a race against time, she must crack a German code hidden in plain sight and uncover their true selves before one of them is killed and the other one puts the entire city of London in peril.
I tremendously enjoyed this paperback original, which is the start of a new mystery series. This book is fun and frothy, offering a little bit of everything: an evocative wartime setting, secret identities, gender politics, light romance, lots of gin drinking, a narrowly-avoided assassination, and a brilliant and saucy heroine. Don't pick this one up if you're looking for something substantial, but if you like historical fiction or if you prefer you mysteries to be decidedly soft-boiled, give this book a spin.