She heard her dead daughter's voice. Everyone else called it grief. One year after three-year-old Amy vanished in a tragic drowning accident, illustrator Sharon Butler is barely surviving the crushing silence left behind. Then, at exactly 2:14 AM, an old baby monitor crackles to life. A frightened whisper. A familiar lullaby. One impossible word: "Mommy." Her husband insists it's trauma. Her therapist calls it an auditory hallucination. But Sharon discovers something no one can explain-a powerful radio signal is transmitting from somewhere nearby. As she follows hidden frequencies, mysterious recordings, and long-buried lies, Sharon uncovers a conspiracy far darker than grief itself. Every clue points toward a terrifying possibility: Amy may still be alive. The 60-Hertz Hum is a gripping psychological thriller, domestic suspense, and mystery novel about gaslighting, hidden surveillance, family betrayal, missing children, and one mother's relentless fight to uncover the truth before she loses everything.
