The Unexpected Mrs. Pollifax by Dorothy Gilman

The novel follows the story of Mrs. Emily Pollifax, a widowed grandmother who seeks excitement beyond her garden club meetings and decides to offer her services to the CIA. Mistakenly recruited as a spy, she embarks on an unexpected adventure in Mexico, where she is tasked with a simple courier mission. However, things quickly spiral out of control, leading her into a dangerous world of espionage. Despite her lack of experience, Mrs. Pollifax's resourcefulness, charm, and unexpected bravery help her navigate the perilous situation, proving that even the most unlikely individuals can become heroes.