A Splash of Secrets, Book 0.5

Set in 1950s New York City, "Codes, Conspiracies, and Cold War Secrets" follows ambitious journalist Mildred Lancaster as she uncovers a web of international espionage after investigating strange markings in rare library books. Forced into an uneasy alliance with a mysterious librarian, she navigates a tense race against time filled with coded messages and unexpected twists. This historical mystery, blending noir suspense and cozy charm, serves as a compelling prequel to the Mermaid Springs Mysteries series.