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The Cipher Room
Paperback
Mystery & ThrillerHistorical Fiction
Publisher Price: $28.99
ISBN13: 9781919209326
Publisher: Red Rowan Press
Published: Aug 24 2026
Pages: 704
Weight: 1.77
Height: 1.55 Width: 5.50 Depth: 8.50
Language: English
England, 1586. A queen is imprisoned. A conspiracy is forming. And somewhere in the secret correspondence crossing the country lies the evidence that could send Mary, Queen of Scots to the scaffold.
Thomas Phelippes is a scholar, linguist and gifted cryptanalyst whose extraordinary ability to break codes has brought him to the attention of Sir Francis Walsingham, Elizabeth I's formidable spymaster. Drawn from the quiet world of scholarship into the emerging intelligence service of Tudor England, Phelippes finds himself at the centre of one of the most dangerous political struggles of Elizabeth's reign.
At Chartley Hall, the imprisoned Mary Stuart believes she has found a secure means of communicating with her supporters. Letters are concealed, smuggled in beer barrels and protected by elaborate ciphers, while Anthony Babington and his fellow conspirators dream of freeing the Scottish queen, assassinating Elizabeth and restoring Catholic rule to England.
But Walsingham is watching.
Working from a locked chamber above Chartley Hall, Phelippes intercepts Mary's secret correspondence and patiently begins to unravel it. Every cipher broken exposes another connection; every decoded letter draws the conspirators closer to discovery. Yet intelligence is not simply a matter of finding the truth. When Phelippes is ordered to alter a letter by adding a single forged passage designed to expose the men behind the conspiracy, the boundary between deciphering evidence and creating it begins to disappear.
If Mary answers, she may condemn herself.
Based on the real events of the Babington Plot of 1586, The Cipher Room is a historical espionage thriller about codebreaking, surveillance, deception and the birth of organised intelligence in Elizabethan England. Bringing together Thomas Phelippes, Francis Walsingham, Mary Queen of Scots and Elizabeth I, it explores the hidden machinery behind one of the defining political conspiracies of the Tudor age-and the moral price paid by the people who operated it.
For readers of Robert Harris, C. J. Sansom and S. J. Parris, The Cipher Room combines meticulously grounded Tudor history with political intrigue, cryptography, secret correspondence and the darker world of Elizabethan espionage.
Every line a lie. Every seal a weapon.
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