The Codebreaker's Daughter

Lillian, resolute in her decision to avoid war work, finds herself reluctantly drawn back into the fray when old acquaintances in Washington, DC, seek her expertise. Even Dinah seeks her out, and the two must overcome their differences to work on an OSS cipher campaign to support Allied spies overseas. But just when Dinah begins to excel in her new position, she is implicated in a series of suspicious activities that cause others to question her loyalty. As she navigates a web of intrigue, she must piece together the truth in time to confront the shadowy threat that could compromise the impending D-Day invasion.