The Echo Killings

Detective Mara Ellison's first clue is a sound.

At 2:47 a.m., an anonymous audio file lands in her inbox-a woman's final moments, recorded with chilling clarity. Hours later, the victim is found murdered exactly as the recording predicted. When a second file arrives foretelling another death, Mara realizes she isn't chasing a killer... she's following a script.

Each recording is impossibly precise. Each murder unfolds exactly as foretold. And every message is sent directly to her.

As panic sp...