All the secrets Helen Lightholder has been working to uncover are about to be revealed, as Helen travels to London. Seeking out a colleague of her late husband's, she delves into a murky world of spies and treason, becoming entangled in a web of danger and intrigue.

Meanwhile, dark happenings back in Bookminster end with the murder of a local man. Once again, Helen is called upon to assist Inspector Graves in an investigation, but can she focus on the present when the mysteries of her past beckon?