The Turing Protocol
Jul 2025 · The Nautilus Series Book 1 · Sold by Simon and Schuster
Ebook
320
Pages
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Eligible
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About this ebook
The greatest weapon of World War II was never a bomb. It was a machine that could rewrite the past.
During the darkest days of World War II, legendary codebreaker Alan Turing creates Nautilus—a secret machine capable of sending messages backwards through time.
One message helps secure victory on D-Day.
But Turing quickly discovers a terrifying truth: history is fragile. Every change creates consequences. Every warning rewrites the future.
Knowing Nautilus could become the most dangerous weapon ever invented, Turing hides it from the world and entrusts its secret to the mother of his hidden child.
For generations, the burden passes from one heir to the next.
Across decades of war, espionage, betrayal, and impossible moral choices, the Turing family must decide when—and whether—to use the machine's extraordinary power. A single message could save millions of lives. A single mistake could unleash catastrophe.
As powerful forces close in and the battle for Nautilus intensifies, one question becomes impossible to ignore:
If you had the power to change history, would you dare use it?
A gripping blend of historical fiction, science fiction, espionage, and conspiracy thriller, this page-turning adventure is perfect for fans of Dan Brown, Matthew Reilly, Blake Crouch, and Andy Weir.
Packed with secret histories, hidden legacies, time-bending twists, and world-changing stakes, this is a thriller that asks what happens when humanity's greatest weapon isn't a bomb—but time itself.
During the darkest days of World War II, legendary codebreaker Alan Turing creates Nautilus—a secret machine capable of sending messages backwards through time.
One message helps secure victory on D-Day.
But Turing quickly discovers a terrifying truth: history is fragile. Every change creates consequences. Every warning rewrites the future.
Knowing Nautilus could become the most dangerous weapon ever invented, Turing hides it from the world and entrusts its secret to the mother of his hidden child.
For generations, the burden passes from one heir to the next.
Across decades of war, espionage, betrayal, and impossible moral choices, the Turing family must decide when—and whether—to use the machine's extraordinary power. A single message could save millions of lives. A single mistake could unleash catastrophe.
As powerful forces close in and the battle for Nautilus intensifies, one question becomes impossible to ignore:
If you had the power to change history, would you dare use it?
A gripping blend of historical fiction, science fiction, espionage, and conspiracy thriller, this page-turning adventure is perfect for fans of Dan Brown, Matthew Reilly, Blake Crouch, and Andy Weir.
Packed with secret histories, hidden legacies, time-bending twists, and world-changing stakes, this is a thriller that asks what happens when humanity's greatest weapon isn't a bomb—but time itself.
The greatest weapon of World War II was never a bomb. It was a machine that could rewrite the past.
During the darkest days of World War II, legendary codebreaker Alan Turing creates Nautilus—a secret machine capable of sending messages backwards through time.
One message helps secure victory o...
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About the author
Nick Croydon was born in Surrey, England, and is the CEO of QBD Books Australia. He has more than twenty-five years’ experience running international publishing companies and book retail businesses across the United Kingdom and Australia. The Turing Protocol is his debut novel. Nick is a father of four and husband to Esther, and he and his family spend their time between Brisbane, Spain and the UK.
Nick Croydon was born in Surrey, England, and is the CEO of QBD Books Australia. He has more than twenty-five years’ experience running international publishing companies and book retail businesses across the United Kingdom and Australia. The Turing Protocol is his debut novel. Nick is a father o...
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