The Earth is sending a message. And it knows his name.Buried deep in the Pyrenees, a neutrino observatory detects the impossible: a repeating signal rising from the Earth's core. Not random noise. Not cosmic radiation. A pattern-pulses of prime numbers, ratios, and letters.Physicist Elias Varga, disgraced for publishing an "impossible equation," is summoned from exile. When the signal begins spelling his name, even his birth date, Elias is forced to confront a horrifying possibility: the message isn't discovery-it's design.Inside the locked-down facility, trust is in short supply.Director Inès Duarte must balance science against the Council's control.Linguist Hana Takeda uncovers a hidden syntax in the noise.Major Luc Morel enforces silence with soldiers and sealed doors.As fractures spread-erased diary entries, altered memories, a brother who both exists and doesn't-Elias realizes the truth: the signal isn't warning them. It isn't guiding them. It's replying.And the one who must answer is already written into its future.The Signal Below is a gripping blend of science fiction and psychological suspense. Perfect for readers of Blake Crouch, Andy Weir, or Michael Crichton, it's a story of fractured realities, buried conspiracies, and the terrible weight of knowing the future before it arrives.