The Obsidian Directive: World War II Novel of Bletchley Park and Espionage (Cipher's Shadow #2)

THE ENEMY IS ALREADY INSIDE THE GATES.

The Ultimate Historical Spy Adventure for Teens and Young Adults.

London, 1940. Bombs rain down on the city. Rations shrink by the day. But for twenty-year-old intelligence agent Julian Holloway, the deadliest war isn't being fought in the skies—it is being fought in the dark.

When a brutal murder leaves behind a chilling, familiar symbol—the mark of the Obsidian Hand—Julian’s world shatters. It is a terrifying echo of a past he thought he buried, proving an impossible truth: the conspiracy runs deeper, wider, and far more lethal than anyone imagined.
Teaming up with the brilliant and enigmatic Bletchley Park cryptographer Beatrice Thorne, Julian enters a high-stakes race against the clock. Coded directives point to a catastrophic plot designed to cripple the Allied war effort from within. The Obsidian Hand has infiltrated the highest levels of government, and their ruthless new leader knows Bletchley Park’s darkest secrets.

In a world built on deception, trust is a weapon. Loyalty is a luxury. Julian must master forensic detection and unmask the mastermind before a devastating strike shatters the Allied forces—and plunges the world into permanent darkness.

Why Teens, Parents, and Educators Love This Series:

High-Stakes Historical Fiction: Immerses readers in the gripping, authentic atmosphere of World War II London, Blitz air raids, and the secretive world of Bletchley Park codebreakers.

Brain-Teasing Mystery: Packed with historical ciphers, codes, and forensic clues that keep young adult readers guessing until the final page.

Relatable Coming-of-Age Themes: Features a young protagonist navigating complex choices regarding personal sacrifice, the true cost of secrecy, and standing up for the greater good.

Perfect Classroom Companion: An exceptional supplemental reading choice for middle and high school history, literature, and STEM units.

Praise for The Cipher's Shadow Series:

"An absolute page-turner! A masterclass in wartime espionage that keeps you hooked from the first paragraph."

"Finally, a historical mystery that balances relentless action with brilliant intellect. Perfect for fans of Alan Gratz and code-cracking adventures." — Educator Review

Will Julian unmask the spy ring in time, or will the shadows of Bletchley Park claim another innocent soul?

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