David Longman's undercover operations with Scotland Yard.
Are fraught with danger. So much so that he finds himself on the brink of death when a mysterious and attractive nun risks her life to save his. The name she used was Elizabeth Carey,
On later investigation he discovers that Elizabeth Carey has been dead for many years, yet the pre-war portrait of her matches the woman he saw. This is just the beginning as Longman begins his quest to discover who Elizabeth Carey was.