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Download The Sigma Protocol Audiobook

Extended Audio Sample The Sigma Protocol, by Robert Ludlum Click for printable size audiobook cover
3 out of 53 out of 53 out of 53 out of 53 out of 5 3.00 (4,384 ratings) (rate this audio book) Author: Robert Ludlum Narrator: Paul Michael Publisher: Macmillan Audio Format: Unabridged Audiobook Delivery: Instant Download Audio Length: Release Date:
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American investment banker Ben Hartman arrives in Zurich for a ski holiday, the first time he's been back to Switzerland since his twin brother died there in a tragic accident four years earlier. But his arrival in Zurich triggers something far more sinister than his brother's fate. When Ben chances upon Jimmy Cavanaugh, an old college friend, Cavanaugh promptly pulls out a gun and tries to kill him. In a matter of minutes, several innocent bystanders are dead - as well as Cavanaugh - and Ben has barely managed to survive. Plunged into an unspeakable nightmare, Hartman suddenly finds himself on the run.

Department of Justice field agent Anna Navarro is being stalked around the world by a relentless killer, managing to survive the killer's attacks only by a combination of luck, skill and her own quick wits. These attacks are somehow related to her current assignment: investigating the sudden - and seemingly unrelated - deaths of a number of very old men throughout the world. The only thing that connects them is a file in the CIA archives, over a half-century old, marked with the same puzzling code word: SIGMA. But someone or something is always seemingly one step ahead of her, the survivors are rapidly dwindling, and her own life is in ever increasing danger.

Brought together by accident, Ben and Anna soon realize that their only hope of survival lies with each other. Together they race to uncover the diabolical secrets long hidden behind the code word, Sigma. Secrets that threaten everything they think they know about themselves, everything they believed true about their friends and families, and everything they were ever taught about history itself. For behind Sigma lies a vast deception that is finally coming to fruition and the fate and future of the world is in their hands.

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Quotes & Awards

  • Robert Ludlum still dominates the field in adventure-drenched thrillers Chicago Tribune

  • “Ludlum displays once again his dazzling prose and ability to juggle an amazing number of plot lines... Publishers Weekly

Listener Opinions

  • 5 out of 55 out of 55 out of 55 out of 55 out of 5 by Tom Tallmadge | 2/13/2014

    " Ludlum as always writes a compelling, and timely novel that will keep you riveted. "

  • 4 out of 54 out of 54 out of 54 out of 54 out of 5 by Tialisa | 2/9/2014

    " I love reading Robert Ludlum because he takes me around the world time and time again. I specifically liked this book and when I first started reading I thought to myself,"this guy must have gone, and seen everywhere and everything." Low and behold he happened to mention in the first couple chapters a little bitty town about 10 miles from me White Sulpher Springs, NY and I'm telling you if you sneeze you would miss this town. So Robert Ludlum had truly been everywhere. Now about the book...OMG it starts off completely action packed, our good guy steps out of his hotel and sees an old college chum he hadn't seen in years and instead of a pat on the back and a good catching up this guy is trying to kill him and he has no idea why. What a great read...Mr Ludlum has yet to let me down. "

  • 3 out of 53 out of 53 out of 53 out of 53 out of 5 by Sandra Cattelya | 2/6/2014

    " just as awesome as another mr. ludlum's books! "

  • 4 out of 54 out of 54 out of 54 out of 54 out of 5 by Tamara | 1/24/2014

    " This was a pretty good story. Read like Ludlum's other books...international thriller. Good for a plane ride or beach day! "

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