
The Istanbul Signal
$2.99 · eBook · instant download
“For readers of John le Carré, Daniel Silva, and Mick Herron.”
Three weeks before she could switch on the most secure communications network the West had ever built, Dr Elif Şahin — one of the finest cryptographers of her generation — was found face-down in the Bosphorus. Officially, an accident. But Şahin was a swimmer, and in the last six hours of her life she saved sixty-eight pages, four times over.
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What you are getting
How it begins
Dr Elif Şahin had been one of the strongest swimmers her country had ever produced. She was found, three weeks before she was scheduled to switch on the most secure communications network the Western alliance had built in fifty years, face-down in the Bosphorus at six in the morning, forty metres from the Galata Bridge. The Istanbul police, who could see the muscles in the dead woman’s shoulders the moment they pulled her out of the water, wrote boğulma — drowning — in the responding sergeant’s notebook and called it accidental. By eight o’clock, Rania Aziz had read their report. By five past eight, she was calling Marcus Vane. By twenty past, he was in a taxi to the airport with the garlic he had been frying for breakfast still cooling in the pan on the kitchen counter of the flat in Lisbon, where Senhora Bárbara would, at noon, let herself in and find the abandoned pan and turn off the gas and not ask, when he returned, where he had been. This is how it begins. This is always how it begins.
Is this your kind of book?
The Istanbul Signal is cold, cerebral Cold War espionage — one city, one ledger, one betrayal at a time. In Brian Courrier’s own words it is for readers of John le Carré, Daniel Silva, and Mick Herron: patient, plotted, and more interested in what people conceal than in how loudly it ends.
This is Book Three of Marcus Vane. Each book closes its own case, so it can be read on its own — but the series is built to be read in order, and starting at The Lisbon Exchange means the connections land the way they were written.
The Marcus Vane in order
- The Lisbon Exchangefree
- The Bucharest Ledger$2.99
- The Istanbul Signal$2.99 · you are here
- The Warsaw Revenant$2.99
- The Belgrade Cipher$2.99
Why buy it here
Buying from this page gets you both formats in one purchase — the EPUB for your e-reader or phone, and the PDF for everything else. There is no DRM on either file, so the book is genuinely yours: move it between devices, keep a backup, read it in ten years on something that has not been invented yet.
The download link arrives the moment the payment clears, and it is tied to the email you paid with — so if you lose the file, the link can be re-issued to that same address. And buying direct means the money goes to the person who wrote the book rather than a retailer’s cut.



