• The Sigma Protocol

  • By: Robert Ludlum
  • Narrated by: Paul Michael
  • Length: 19 hrs and 36 mins
  • 4.1 out of 5 stars (925 ratings)

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The Sigma Protocol  By  cover art

The Sigma Protocol

By: Robert Ludlum
Narrated by: Paul Michael
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Publisher's summary

Do you think you know what really happened after World War II? You don't. Sigma made sure of that.

American investment banker Ben Hartman arrives in Zurich, the first time he's been back to Switzerland since his twin brother died there in a tragic accident four years ago. But when Ben chances upon Jimmy Cavanaugh, an old college friend, Cavanaugh draws a gun and tries to kill him. In minutes, several innocent bystanders are dead, as well as Cavanaugh, and Ben is on the run, plunged into an unspeakable nightmare.

U.S. Department of Justice field agent Anna Navarro is being stalked by a relentless killer, managing to survive only by a combination of luck, skill, and her own quick wits. The attacks on her are somehow related to her current assignment: investigating the sudden, seemingly unrelated deaths of a number of very old men around the world. The only thing that connects them is an ancient CIA file bearing the code word Sigma.

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

©2001 by Myn Pyn LLC (P)2001 by Audio Renaissance, an Imprint of Renaissance Media, Inc.

Critic reviews

"Ludlum's trademark skills of intricate plotting, breakneck pacing, and high-wire drama are all on display in this gripping thriller." (Amazon.com)
"A memorable swan song." (Booklist)

What listeners say about The Sigma Protocol

Average customer ratings
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  • Overall
    4 out of 5 stars

Very nice book

This was a very nice book, I particularly enjoyed the great job the narrator Paul Michael did. At least for me was a little slow at the beginning, then hard to put down. As I listen to the book, I couldn't help to ponder, although the story is clearly fiction, if somewhere, somehow, there is a "Sigma sibling", as our fixation with eternal youth will cross the boundary of the scalpel to the genes.

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  • Overall
    5 out of 5 stars

Classic Ludlum

If you liked other ludlum books, you should like this one. It has the standard formula regarding a character pressed into a situation requiring heroic feats, but has enough twists to keep it interesting.

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  • Overall
    4 out of 5 stars

Solid Ludlum

If nothing else, Robert Ludlum knows how to weave a story into the twines of history. This one is engrossing, if not unbelievable, right from the get go. It is a nice story though, with plenty of stuff to make you think about issues and what you think of them within your own mind.

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  • Overall
    5 out of 5 stars

excellent book

Very enjoyable to listen too. At time the reader's attempts at accents were a bit much, but a fun book to listen to.

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