A Lesson in Secrets by Jacqueline Winspear
My rating: 4 of 5 stars

1932 and Maisie is recruited by the British Secret Service to apply and work as a lecturer at a private college in Cambridge to monitor various activities. But when a murder occurs she calls in her friends from Scotland Yard. While setting her assistant Billy on various different tasks.
An enjoyable slow paced well-written mystery

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