? Finalist -- 2025 American Writing Awards (Science Fiction)

5-Star MUST READ ? -- Reedsy Discovery


For fans of Michael Crichton and A.G. Riddle -- a gripping fusion of science, suspense, and cosmic mystery.
Praised as "brilliantly cinematic and impossible to put down," The Umbra Signal propels readers into a mind-bending race against time -- where decoding an alien transmission could rewrite reality itself.

Selected scene shorts are on YouTube @ Cipherlock Press

An Amazon Bestseller in Technothrillers, Alternative History, and Science Fiction.

When a mysterious signal from a distant galaxy reaches a hidden SETI outpost, former Air Force intelligence officer Liam Mills finds himself pulled into a labyrinth of ancient codes, Cold War secrets, and a force capable of bending time itself.

Together with codebreaker Gina Alvarez, historian Ben Levinson, and maverick engineer Marcus "Sparky" Adler, Liam must uncover the truth buried across decades of hidden transmissions. What begins as a midnight decoding session spirals into a battle against an intelligence that has shaped human history from the shadows.

Blending cutting-edge science with heart-pounding suspense, The Umbra Signal launches the Cipherlock? Sci-Fi Series -- a story of signals, memory, and survival at the edge of time.

Perfect for fans of Douglas E. Richards, Michael Crichton, and A.G. Riddle -- where cutting-edge science meets the mysteries of time.

Critics Rave:
"The Matrix meets The Da Vinci Code with a tip of the hat to James Joyce. Exercise for your little grey cells." -- Reedsy Discovery Review
"A masterfully woven Cipherlock Sci-Fi thriller that blends real-world cryptography, quantum science, and relentless suspense. A gripping debut that keeps you guessing until the final page." -- American Writing Awards

The Umbra Signal is Book I of the Cipherlock? Trilogy -- a groundbreaking new science-thriller saga where every signal hides a code, and every code rewrites time itself.

Book II -- The Umbra Splinter continues the journey in 2026, as the survivors confront fractured realities and a hidden war across the lattice of time.

Discover the beginning of the Cipherlock? universe now, before the next signal arrives.

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• Mystery, Thriller & SuspenseThrillersTechnothrillers

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• Print Length: 584 Pages
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