The Decrypter and the Falcon Syndrome: The Calla Cress Decrypter Thriller Series, Book 9 - Rose Sandy

In the shadowy world where codebreakers reign supreme, one ancient diary threatens to rewrite the laws of human mortality, and everyone is willing to kill for it.

As Calla and her elite team peel back the diary's layers of impossible codes, corporate titan Kenzel mobilizes his vast resources to seize the diary's secrets. With his son's life hanging in the balance, his desperation makes him the most dangerous kind of enemy—one with nothing to lose.

When Kenzel kidnaps renowned geneticist Dr. Elizabeth Smith to unlock the diary's final secrets, the game changes. Now Calla isn't just chasing codes—she's hunting a predator while protecting knowledge that could transform or destroy humanity.

The Decrypter and the Falcon Syndrome fuses cutting-edge genetics with ancient cryptography in a pulse-pounding thriller where the line between savior and destroyer blurs with every decoded symbol. This is high-concept suspense that delivers intellectual thrills alongside breathless action, perfect for readers who demand smart, sophisticated adrenaline.

In The Decrypter and the Falcon Syndrome, Rose Sandy presents a chilling glimpse into a future where memory is currency, identity is fluid, and truth is up for grabs.

Reader Praise

“A visionary thriller that makes you question what’s real and what’s programmed.”
“Fast-paced, intelligent, and frighteningly plausible.”
“Calla Cress faces her most psychological and personal mission yet.”
“Mind-blowing twists and jaw-dropping science—this one lingers long after the last page.”

Zurich, Switzerland: The story opens at a peace conference where global leaders begin to behave erratically—after a covert neural attack.

Jerusalem, Israel: Home to the Falcon Scrolls, hidden beneath catacombs and guarded by an ancient order.

British Library, London: A digitised manuscript reveals truths about memory corruption and AI evolution.

Doha, Qatar: A data hub for neurological warfare, where FALCON’s code takes shape.

Oxford, UK: Academic cover-ups and a neuro-lab hold secrets from Calla’s past that may unlock everything.

Tel Aviv, Israel: A covert facility reveals the link between the ancient scroll and the modern mind weapon.

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