Tracy Larrimore is an aid to the British Secret Service.
Being is an independent-minded young woman of 21 who was seeking some excitement and got a lot more than she expected, Larrimore finds herself in the middle of considerable action. Not an agent herself, she nevertheless becomes enmeshed in international intrigue when the man who hires her is using her as an unsuspecting cover. Soon numerous people want to see her dead and it takes all her luck, and the help of a handsome stranger, to survive. While she is an American from New Jersey, the spy agency she comes into contact with, and thus helps, is British.
Larrimore had been living in New York looking for work when she read an advertisement for a secretary which she answered. Surprised to find herself hired on the spot, she was even more stunned when told that her job would require her to accompany her new boss on a business trip to Europe. When the work was done there and her boss left to return, she opted for a couple of days of sight-seeing in London on her on. After one day, she reads in the paper that she had been killed in Paris.
So starts the new career of Larrimore as she tries to understand the mistake and gets herself in deeper and deeper.
Playing a major role in the Larrimore series is the British agent Mike Thompson who saves her, loves her, marries her, and along the way gets his life saved a time or two by her. In typical romance formula, the relationship takes time to develop but when it does it also brings out the tenacity that makes Larrimore the kind of young woman who would go off on her own like she does.