Silver Gravity Books
The Decrypter: The Storm's Eye, The Calla Cress Decrypter Thriller Series, Book 4 - Rose Sandy
The Decrypter: The Storm's Eye, The Calla Cress Decrypter Thriller Series, Book 4 - Rose Sandy
Action & adventure, Thriller & suspense, Technology, Suspense, Romance, Crime & mystery, and Historical fiction
Book Number in Series
Book Number in Series
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A deserted island, a mysterious technology, and a world-changing discovery.
An elite codebreaker, an ex-Marine intelligence operative, and a genius engineer take to sea on a stealth super-yacht to stop weather terrorism at scale.
When a team of international scientists is sent to investigate a mysterious technology on an abandoned island, they are met with a terrifying discovery that defies belief. But for Calla Cress, a no-nonsense British Museum curator turned cyber agent known as the Decrypter, this is just another day on the job. With her expertise in cracking encrypted codes and scripts, both ancient and cyber, Calla is the go-to agent for the US and British governments.
But as she delves deeper into the strange occurrences on the island, Calla realizes that this case is unlike any she's encountered before. As the weather seems to follow commands from the deserted facility, Calla finds herself on a journey that will take her to the depths of her own darkness.
From the oceanic reefs of Hawaii to the streets of St. Petersburg and the charm of Miami, Calla must use all her skills to track down an unseen enemy and claim a tech discovery that could change the world.
Embark on a high-stakes adventure with this page-turner that will keep you guessing until the very end, perfect for fans of Daniel Silva, Ernest Dempsey, Clive Cussler and Steve Berry.
Reader Praise
"A thrilling exploration of power, legacy, and who controls the narrative—wrapped in jaw-dropping suspense."
"I couldn’t breathe half the time! Calla is the code-breaking heroine we’ve all been waiting for."
"Smart, high-concept, and perfectly paced. Fans of Dan Brown and Stieg Larsson will love this."
The Decrypter: The Storm’s Eye stands out for its fusion of real science and imaginative speculation. It explores the consequences of tampering with nature, the allure of solving impossible puzzles, and the importance of trusting your team. If you love books that mix action, intellect and exotic travel, this techno‑thriller deserves a place on your shelf.
Locations & interesting places
- South Pacific Island Research Base – remote, abandoned facility where Project Storm began; laboratories, bunkers and bunk beds filled with sedated scientists.
- Hawaii – coral reefs concealing a sunken lab; lush tropical scenery juxtaposed with high‑tech intrigue
- St. Petersburg, Russia – icy canals and opulent palaces; clandestine meetings with Russian historians and operatives
- Miami, USA – art‑deco cityscape; CIA safehouses and high‑speed chases.
- Lisbon and Porto, Portugal – ancient monasteries, cobbled streets, Atlantic ports; traces of the Order of Christ and nautical history
- London, UK – British Museum; Calla’s home base and the scene of initial recruitment.
- Ancient island myth – references to a darkness at three in the afternoon when the Lynx was first tested.
Listen to the series here:
ABOUT THE SERIES
ABOUT THE SERIES
Calla Cress is no ordinary museum curator. By day, she manages ancient manuscripts, Byzantine relics, and rare artifacts at the British Museum. But in the shadows, she’s a top operative, for a covert multi-government spy agency. With unparalleled skills in cryptography, ancient languages, and digital intelligence, Calla is known as The Decrypter,the one they call when the stakes are global and the clues are buried deep in history.
The Calla Cress Technothriller Series
Introduction: The Curator and the Code
Calla Cress is a brilliant curator at the British Museum, a woman whose unparalleled command of history and ancient languages has made her a luminary in the academic world. Her quiet life shatters when she’s recruited to decipher a cryptic, long-lost manuscript written in an apparently unbreakable code. The secrets locked inside are no mere curiosities: they map the location of resources that could make crude oil look obsolete. Thrust from scholarly halls into the shadows of global espionage, Calla learns that priceless artefacts can be triggers for future wars—and her first mission is only the beginning.
The Scope of the Conspiracy: A Global Race Against Time
What starts with a single manuscript escalates into a worldwide battle against a cascade of interlinked threats. The Calla Cress series blends historical mystery, high-stakes international espionage, and cutting-edge technothriller energy. From London and Paris to the deserts of Morocco and the jungles of the Congo, Calla and her allies piece together clues centuries in the making. Hunted at every turn by relentless foes—wielding carbonado diamonds and moving like computer-augmented phantoms—they bend physics and technology to their will. With each book, the stakes rise and the pace accelerates, as Calla uncovers a conspiracy vast enough to bring the world to its knees.
A Promise to the Reader: Unforgettable Adventure
Expect an action-packed ride from first page to last—breathless momentum with brains and heart. Each instalment delivers intricate mystery, breathtaking suspense, and relentless thrills. If you love globe-trotting puzzles, fierce heroines, and technothrillers that never let up, the Calla Cress series belongs on your shelf.
Main Characters
Calla Cress—the series protagonist—is a British Museum curator and ISTF agent on a personal crusade to uncover her origins and the truth behind her genetically enhanced abilities. Facing cryptic codes and dangerous foes, her journey pushes her cyber-espionage skills to the limit. Across the series she evolves into a formidable operative, determined to reconcile the mysteries of her past with her present while battling adversaries who weaponise her own secrets against her.
Jack Kleve is the quintessential ally—a visionary tech entrepreneur and ISTF operative who lends his skills to Calla Cress and Nash Shields. While navigating corporate rivalry and the murky ethics of rapid technological advancement, his arc bends towards recognising the greater good over profit. Jack’s devotion to Calla adds a personal dimension to his conflicts, intertwining the professional with the emotional. His shift from profit-driven inventor to socially conscious partner marks a pivotal transformation in the series.
Nash Shields, an NSA and ISTF agent, is the steadfast protector and love interest, driven by a profound sense of duty. He confronts formidable enemies and complex political networks while safeguarding vital technologies alongside Calla. His journey forces him to question the ethics of his mission, balancing loyalty to his agencies with a deepening moral awareness. Torn between professional duty and personal feelings, Nash walks a precarious line between love and allegiance.
SERIES READING ORDER
SERIES READING ORDER
The Calla Cress Decrypter Thriller Series In Order
- Book 1: Secret of the Lost Manuscript
- Book 2: The Mind Hacker
- Book 3: Digital Eyes Only
- Book 4: The Storm’s Eye
- Book 5: The Pythagoras Clause
- Book 6: The Beale Ciphers
- Book 7: Atlantis of the Sands
- Book 8: Kingdom of Diamonds
- Book 9: The Falcom Syndrome
- Book 10: The Queen of Sheba
- Book 11: The Calculus Warning
- Book 12: The Cobra Paradox
- Book 13: Room of Martyrs
- Book 14: Eiger Mosaic
- Book 15: Enemy of Wolves
- Book 16: The Pharaoh's Mask
- Book 17: The Eternity Hypothesis
- Book 18: The Sculptor's Code
- Book 19: The Solomon Agenda
- Book 20: The Pheonix Cipher
- Book 21: The Cairo Key
- Book 22: Red Fox Agenda
- Book 23: Phaistos Disc
- Book 24: Scorpion Gold
READ A SAMPLE
READ A SAMPLE
Meet the Author
Meet the Author
Meet the Author Rose Sandy
Rose Sandy writes thrillers that blend espionage, technology, and history into fast-paced adventures. Her stories dive into the world of covert intelligence, scientific breakthroughs, and global conspiracies, perfect for readers who love suspense with a twist of "what if?" Whether you're on a morning commute or relaxing on a Sunday, her books promise to entertain, surprise, and transport you to hidden corners of the world.
A true globetrotter and lifelong communicator, Rose draws inspiration from historical archives, cutting-edge tech, and conversations with intelligence insiders. When she's not researching in the British Library or exploring Churchill’s War Rooms, she’s crafting thrillers that weave intrigue, action, and a hint of romance. Discover more here or join her newsletter at subscribepage.io/Wuqko4.
Tropes You'll Love
Tropes You'll Love
action-packed female lead, globe-trotting techno-thriller, ancient technology meets modern espionage, race against time, found family spy team, enemies in high places, codebreaker heroine, secret government experiments, weaponised weather conspiracy, thrilling archaeological mystery, intelligent action thriller, morally complex allies
Audio Book Sample
Audio Book Sample
Book in production.
Other Book Details
Other Book Details
Action & Adventure, Thrillers, Conspiracy Thrillers, Technothrillers, Espionage Thrillers, Mystery & Suspense, International Crime, Historical Thrillers, Women Sleuths, Cyber Thriller, Archaeological Thrillers, Political Thrillers
FAQs
FAQs
Fast paced tecno tale. Great descriptive writing showing a real understanding of the places visited by Rose Sandy. A good well balanced and thought out series.
Another great Calla Cress thriller taking the reader all over the globe to exotic places while telling another thrilling story.
I really enjoyed the pace of this book. I don't usually binge read stories, but I could not put this one down! I found the way she wrote about controlling weather very captivating.
She's hit the spot again. Carla Cress and Nash in a race against time and as usual there are barriers. Good pursuit in story and action. Must check the next one..
A fantasmagorical read. Unable tp put down. Looking forward to the next story.
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