SHEPHERD Protocol: 73 Seconds Audiobook by Charles J Hierons

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Title: SHEPHERD Protocol: 73 Seconds
Subtitle: The Deep State Files, Book 2
Categories: Adventure, Fiction, Military, Science Fiction
Author: Charles J Hierons
Narrator: Tony Rao
Publisher: Charles J Hierons
Release date: 01-15-2026
Language: English

Summary:
In the cold depths of the North Atlantic, a Royal Navy research team led by Commander Dr Sarah Chen uncovers a baffling electromagnetic pulse, repeating every seventy-three seconds, and witnesses the rise of geometric, non-human structures from the seafloor. Their discovery is quickly suppressed by military authorities, but the mysterious pulse continues, undeterred.
Haunted by the incident, intelligence analyst Dr Justin Blake is drawn into a web of secrecy surrounding the SHEPHERD protocol—a covert signals intelligence program at the heart of a global conspiracy. The suspicious death of Navy officer Wearing leaves behind encrypted warnings: the signal is not a message, but a trigger. As Blake unravels the clues, he realizes the anomaly is awakening something ancient, and the world’s militaries are racing to control or contain it.
Blake is assigned to HMS Leviathan, a nuclear submarine whose crew is already affected by the pulse. The signal invades their minds, synchronizing thoughts, eroding individuality, and spreading paranoia. Headaches, compulsive counting, and hallucinations become rampant. Sabotage and betrayal threaten from within, as some crew members act under the signal’s influence—or under secret orders.
Marine biologist Dr.

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