The Sigma Protocol Audiobook By Robert Ludlum cover art

The Sigma Protocol

Preview

Try for $0.00
Prime logo Prime members: New to Audible?
Get 2 free audiobooks during trial.
Pick 1 audiobook a month from our unmatched collection.
Listen all you want to thousands of included audiobooks, Originals, and podcasts.
Access exclusive sales and deals.
Premium Plus auto-renews for $14.95/mo after 30 days. Cancel anytime.

The Sigma Protocol

By: Robert Ludlum
Narrated by: Paul Michael
Try for $0.00

$14.95/month after 30 days. Cancel anytime.

Buy for $14.99

Buy for $14.99

Confirm purchase
Pay using card ending in
By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.
Cancel

About this listen

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.
Espionage Suspense Scary Switzerland
activate_Holiday_promo_in_buybox_DT_T2

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
Overall
  • 4 out of 5 stars
  • 5 Stars
    16
  • 4 Stars
    13
  • 3 Stars
    8
  • 2 Stars
    3
  • 1 Stars
    0
Performance
  • 4.5 out of 5 stars
  • 5 Stars
    9
  • 4 Stars
    3
  • 3 Stars
    2
  • 2 Stars
    0
  • 1 Stars
    1
Story
  • 4 out of 5 stars
  • 5 Stars
    8
  • 4 Stars
    5
  • 3 Stars
    1
  • 2 Stars
    1
  • 1 Stars
    1

Reviews - Please select the tabs below to change the source of reviews.