Book restoration expert Brooklyn Wainwright is attending the world-renowned Edinburgh Book Fair when her ex Kyle shows up with a bombshell. He has an original copy of a scandalous text that could change history—and humiliate the beloved British monarchy. When Kyle turns up dead, the police are convinced Brooklyn's the culprit. But with an entire convention of suspects, Brooklyn's conducting her own investigation to find out if the motive for murder was a 200-year-old secret—or something much more personal.