The Last Frequency. Cider hollow files, #5

When a mysterious package leads attorney Mia Hale and artist Jake Reyes to a university radio archive, they uncover hidden financial data embedded in decades-old broadcasts. The discovery points to a long-buried money-laundering network disguised as a respected arts foundation-and to the suspicious death of the archivist who first heard the signal beneath the music. As Mia and Jake race to decode the remaining recordings, they must expose a conspiracy that has endured for generations before its guardians silence them as well.
The Last Frequency is a thoughtful, atmospheric thriller about memory, justice, and the truths that wait to be heard.