Goodreads helps you keep track of books you want to read.
Start by marking “The Judas Strain: A Sigma Force Novel” as Want to Read:
The Judas Strain: A Sigma Force Novel
Enlarge cover
Rate this book
Clear rating
Open Preview

The Judas Strain: A Sigma Force Novel (Sigma Force #4)

4.15  ·  Rating Details ·  22,115 Ratings  ·  967 Reviews
New York Times bestselling author James Rollins returns with a terrifying story of an ancient menace reborn to plague the modern world . . . and of an impossible hope that lies hidden in the most shocking place imaginable: within the language of angels.
ju·das strain, n. A scientific term for an organism that drives an entire species to extinction.

From the depths of the I

Published (first published July 2nd 2007)
More Details... edit details

Friend Reviews

To see what your friends thought of this book, please sign up.
This book is not yet featured on Listopia. Add this book to your favorite list »

Community Reviews

(showing 1-30)
filter  |  sort: default (?)  |  Rating Details
AN ANCIENT, PANDEMIC CAUSING, VIRUS whose origin and cure is linked to the ANGKOR WAT and the mysterious return voyage of MARCO POLO from the court of KUBLAI KHAN...yep, it looks like another job for SIGMA FORCE .

The SIGMA Force is one of the truly delicious concepts to be introduced into the popcorn-eating, page-turning, actiony, spy-guy, thrill-o-rama genre. PhD toting scientific brainiacs with Navy Seal kill skills and James Bond spy craft (minus babes and booze…damn).

SIGMA is a covert ops t
Oct 02, 2007 Kendra rated it really liked it  ·  review of another edition
I'm a little bit embarrassed to give this book a 4, but there you go. It's a guilty pleasure, I guess, because the book is kind of ridiculous in a testosterone-fueled Indiana-Jones-meets-Mission-Impossible kind of way. If this tells you anything, I nearly downgraded it to a 3 because of the cannibals. (Yes, cannibals.)

I was about 60 pages into the book before I realized that it was part of a series. Some of you know that reading a series out of order is one of my BIGGEST PET PEEVES EVER, so I th
সালমান হক
বইটা পড়ার আগেও জেমস রোলিনসের বড় ভকত ছিলাম। এখন শেষ করার পর বলতে হবে যে মুগধতা আরো বেড়েছে ওনার ওপর। তার বইগুলোয় সবচেয়ে বেশী যে বযাপারটা টানে আমাকে তা হল ফযাকট এবং ফিকশনের মিলবনধন। দুটোকে এমনভাবে মেশান তিনি যে কিছুকষণ পরপরই চোয়াল আপনা আপনি খুলে যায়। পরতিটা বই থেকেই নতুন নতুন অনেক জিনিস জানতে পারি(কিছুদিন পরেই অবশয সব বেমালুম ভুলে যাই :3 )। এই বইয়েও তার বযতিকরম ঘটেনি। ইতিহাস আর অণুজীববিজঞানের অদভুত মিশরণ ঘটিয়েছেন রোলিনস।

তবে আমার একটু বেশীই ভালো লেগেছে, তার কারণও আছে অবশয। আমি অণুজীববিজঞানের ছাতর,
Dec 29, 2007 Lorena rated it really liked it  ·  review of another edition
James Rollins' novels generally remind me of some weird combination of Michael Crichton, Dan Brown, and Tom Clancy -- none of whom are among my favorite authors. Rollins is, though -- I love the combination of myth/legend, science, and intrigue. The Judas Strain starts with a viral outbreak, follows Marco Polo to Cambodia (via an ancient manuscript), and has the SIGMA team tracking terrorists on three continents. If that sounds far-fetched, it's only because you haven't read it. Rollins nearly a ...more
Adnan Rizon
May 06, 2016 Adnan Rizon rated it it was amazing  ·  review of another edition
ভাবুন তো ফরানস, আপনার দেহে ঢুকে পড়া কোন এক পরজীবি আপনার অজানতেই শরীরের সব অরগানকে নিজের কবজায় নিয়ে নিচছে! নিজের দেহের কোষকেই নিজের বিরুদধে লেলিয়ে দিচছে! জনম দিচছে এক আদিম অনুভূতির......
ইনদোনেশিয়ান দবীপপুঞজের করিসমাস আইলযানডসহ সংশলিষট সাগরে ছড়িয়ে পড়ছে এক অদভুত রোগ। জলজ পরানীর পাশাপাশি আকরানত হচছে দবীপবাসীরাও। কিছু বুঝে ওঠার আগেই সানডে মানডে কলোজ হয়ে যাচছে নিরীহ লোকজনের। তদনত করতে পাঠানো হল সিগমা ফোরসের ড. লিসা কামিংস আর মঙক কককালিসকে। তবে গবেষণা করতে এসে তাদের নিজেদের জীবনই লুল হয়ে গেল। অপহরন কর
Freda Malone
Apr 17, 2013 Freda Malone rated it it was amazing  ·  review of another edition
Shelves: favorites
Marco Polo’s 2 year journey in 1292 from China is described in this novel. It is mysteriously eerie and puzzling but also intriguing and compelling. He starts out with 14 ships and over 600 warriors, only to be wiped out by a mysterious plague that wipes out all but 18 men including himself, and a betrothed princess bound for Persia. There is talk of ‘angels’ and a ‘map’, cannibals and pirates. This secret must be kept hidden at all costs but what is it?

Christmas Island - centuries later

A husba
Barbara ★
This is the third book in the Sigma Force series that I've read and absolutely loved. James Rollins writing is historically accurate and amazingly detailed. It's one of those books that draws you in from the first horrific chapter and keeps you turning pages as fast as your fingers (and eyes) allow. Of course there are multiple things going on: a historical trail and a scientific trail which ultimately converges with dire consequences. I particularly liked the inclusion of Kowalski, an ex-milita ...more
Simone Kearney
Aug 28, 2007 Simone Kearney rated it really liked it  ·  review of another edition
Recommends it for: adults
A friend recommended James Rollins to me as I like books by Dan Brown, and Steve Barry. I have read a couple of his books so far and am in complete agreement with my friend. I find that the books start off in a very exciting way and hold my attention throughout. In this book, The Judas Strain, I am learning about Marco Polo and the mystery surrounding his 24 year voyage that took him to the palaces of Kublai Khan in China. I would highly recommend this book to anyone who enjoys a historical thri ...more
Shahjahan Shourov
Oct 09, 2016 Shahjahan Shourov rated it really liked it  ·  review of another edition
সিগমা ফোরস সিরিজের ৪রথ বই “দয জুডাস সটরেইন”। গলপের উৎকরষতার বিচারে বলি, পরথম। দারুণ লাগলো, পুরোপুরি এংগেজিং।

ইনদোনেশিয়ান দবীপপুঞজে অদভূৎ একটা রোগ ছড়িয়ে যাচছে।
ড. সুজান টিউনিস, তার সবামী এবং একজন সহকরমীকে সাথে নিয়ে ওদিকেই আছেন।
সে সময় ইতালিতে হাত-বেহাত হল একটা ওবেলিসক।
ভযাটিকানে, মনসিনর ভিগর ভেরোনা’র মনযোগ আকৃষট করে পুরনো (সিরিজের পূরববরতী এক গলপের) আর ভীতিকর একটা লোগো।
মঙক আর লিসা কামিংস, পরাচযে ছড়িয়ে পড়া রোগটার বৈজঞানিক তদনতে নিয়োযিত থাকাকালীন সময় ছিনতাই হল তাদের বেইজকযামপ; একটা করুজশিপ।
সেঁধে, গরে
Jun 07, 2009 Robin rated it it was amazing  ·  review of another edition
After finishing The Judas Strain, I remain a HUGE James Rollins fan! I think Map of Bones and Sandstorm are my favorite books in the Sigma Force series, but really, they are all superb adventures, and The Judas Strain is no exception.

After reading 4 books in the series, I'm completely invested in these characters. I have images of them in my head. I know and love or hate their personalities. I root for their success and worry at their failures and ultimately, I want them to save the world. I thi
Jan 14, 2016 Mancho283 rated it really liked it  ·  review of another edition
ชวงนีเกิดความรูสึกอยากอานแนว Thriller แบบนีมากเลย ลุนระทึกแบบวางไมลง เรือง map of bones สนุกมากทีสุดเทาทีอานมาสีเลม แต...สิงทีไมชอบคือ มันเหมือนเราดูหนังหรือซีรียสักเรืองหนึงทีตัวละครเดนๆ(โดยเฉพาะคนทีเราชอบ)ตาย แลวอยางบางเรือง คนทีเราคิดมาตลอดวาเปนนางเอกไปๆมาๆไมใชนางเอกตายซะงัน(ยกตัวอยางนะๆ) คืออะไรทีเซง ฮาๆ คงตองพักชุดนีไวกอน เราคงตองกลับไปอานแนวโรแมนซของเราเหมือนเดิม ...more
Yelania Nightwalker

Sumatra, año 1293

Marco Polo, su padre y su tío (Los Polo) fueron los primeros en hacer el viaje a China, a su regreso [a Venecia] contaban con una flota de 14 navíos y 600 hombres. En su viaje de regreso, una extraña enfermedad se extendió entre los viajeros y Los Polo se vieron obligados a quemar los navíos y a los enfermos, pues una vez contraída la enfermedad, todos los que la tienen, empiezan a presentar comportamientos erráticos, extrañas máculas en sus cuerpos, etc. Por eso Los Polo s

Mike (the Paladin)
I truly hate being in this position. A friend here on Goodreads with whom I usually agree recommended that I try Rollins. Now admittedly this is not the first in the series and I don't often start a series in the middle, but I was looking for an audio that I could listen to as I was busy with "mindless tasks". (I'm straining not to make a joke here.)

I wish I could say I liked this book, I wanted to, but I just don't/didn't. I was relieved to reach the end. To give credit where credits due...the
Sep 21, 2014 Aaron rated it really liked it  ·  review of another edition
The fourth in the Sigma Force adventure series. Two scientist-soldier members of Sigma Force, Monk Kokkalis and Lisa Cummings, investigate a strange disease outbreak near Christmas Island that turns people into enraged murderers before killing them. Meanwhile, Sigma's commander, Gray Pierce, sees a member of the nefarious Guild show up injured on his parents' doorstep bearing a strange obelisk. The two incidents are (of course) related, not only to each other but to Marco Polo's mysterious journ ...more
Ashikur Bishal
May 06, 2016 Ashikur Bishal rated it really liked it  ·  review of another edition
আহেম, আহেম... দুনিয়া বিপদের সামনে আরেকবার। চাইকাউসকি সাহেব বিপদে ফালাইসেন, উদধার তো উনিই করবেন, তাই না? দযাটস হোয়াই, সিগমা ফোরস ইজ রেডি ...more
Dec 04, 2016 Vlasta rated it really liked it  ·  review of another edition
Nemohla bych autorovy fantaskní příběhy číst pořád, ale jednou za čas je to fakt jízda. Tolik faktů, tolik fikce, tolik akce a všechno propojené. Brzy si nejspíš přečtu další díl.

Where can I apply to become apart of the Sigma team and can I please request Gray as my team captain? This series just gets better and better. Rollins has created a cast of characters that grow and develop from book to book. They're kick-ass agents but they're not infallible. They (regularly) get themselves kidnapped, get themselves shot, engage civilians to do the hard work, make mistakes and get involved in all manner of romantic entanglements but hey, that's what I love about them.

Apr 05, 2011 Ashley rated it it was amazing  ·  review of another edition
Shelves: own-a-copy
This was a book I had been wanting to read for a while now, after having first come across it at the bookstore and being intrigued by the book jacket. Now that I have read and completed it, I have to say that I truly enjoyed "The Judas Strain", it kept me entertained from start to finish. Perhaps the most memorable part of the book for me, which will probably stay with me the longest was one of the quotes at the beginning of the book as cited from the US Centers for Disease Control and Preventio ...more
Feb 11, 2012 Jason rated it really liked it  ·  review of another edition
This was definitely an intriguing adventure for the Sigma forces, starting with the mysterious motive behind the murder of an Egyptian curator for an even more mysterious object with links to one of the most bizarre historical mysteries we know of. The journey of Marco Polo and his father (Niccolo) and his uncle (Masseo). However, there are parts of the journey that remain a total mystery to us all. This adventure looks into what may have happened as well as a secret chapter of Marco's journey a ...more
Jan 05, 2009 Jean rated it liked it  ·  review of another edition
Shelves: fiction
Another really fun read from James Rollins. It brought back a number of characters from the last couple novels (and didn't incorporate too many new ones) which was fun. Being about a violent, highly-contagious disease made for a lot of nasty, skin-crawling, stomach-churning moments. The usual complaints are in effect here: flat character relationships (but they're getting a little better for me, now that Ive read these characters a number of times), unnatural dialogue (I get a little annoyed whe ...more
Feb 21, 2011 Michael rated it really liked it  ·  review of another edition
Full of Action and stunning characters

I have read just about every book written by James Rollins and in my opinion "The Judas Strain" is right up there at the top. It's a stunning and education portrait of those nasty bugs in the world of biological science. In the "The Judas Strain", the fourth novel in the Sigma Force series I thought Mr. Collins writing style captured the true effects of a loose deadly bacteria that is killing all life in the waters of Christmas Island. The story is full of
Riju Ganguly
Jan 25, 2015 Riju Ganguly rated it really liked it  ·  review of another edition
This thriller, in the 'Sigma Files', is probably the closest thing to anything written by Michael Crichton. James Rollins has compressed so many intriguing ideas and facts onto the matrix of our imagination (and a very real fear), that this novel simply couldn't be rushed. I had to read it piece-by-piece, trying to absorb the many threads of the narrative. My only grudge in this respect is that the narrative didn't have any humour at all. Hence, one star was dropped. Otherwise, this is really as ...more
Mar 18, 2016 Kazi rated it it was amazing  ·  review of another edition
Shelves: thriller
সিগমা ফোরস সিরিজের আমার পড়া সেরা বই এখন পরযনত।
আবার পুরানো শতরু গিলডের মুখোমুখি সিগমা ফোরস,পটভূমিতে উনমোচিত হচছে এমন সব ঘটনা যা শেষ পরযনত মানবসভযতাকে হুমকির মুখে ফেলে দেবার কষমতা রাখে।একইসাথে যুকতরাষটর আর দকষিণ-পূরব এশিয়াজুড়ে বিসতৃত কাহিনীতে বায়োটেররিজম,এসপিয়নাজ আর নিখাদ অযাকশন- সবকিছুই ছিল।বিশেষ করে ভাল লেগেছে লেখার ধরণটা,আগের ৩টা বই মাঝেই মাঝেই একটু একঘেয়ে হয়ে গেলেও এটা পুরো সময় জুড়েই একই গতিতে চলেছে,পড়তে গিয়ে একটুও বাঁধেনি।
কিলার সায়েনটিসটদের সাথে পরবরতী অভিযানে খুব দরুতই যোগ দিচছি। Last Orac
আকাশ আব্দুল্লাহ
couldn't fulfill my expectation.

amazing.... but not that outstanding.
if it would be an anonymous book except sigma, I should give it 5 star. But from rollins, I was expecting a far more extraordinary, outstanding thriller. hope the last oracle will satisfy me in which way I wanna be satisfied with Rollins's books.
May 06, 2011 Yona rated it really liked it  ·  review of another edition
I've read a lot of books by James Rollins and loved all of them, but this one is my less favorite, it was still very good but not as much as his other books.
Maggie Stewart-Grant
Publishers Weekly and the American Library Association touted fabulous breakneck speed and intrigue that I found fascinating, and they weren’t wrong. It might be a book to capture you, as far as the story line and characters are concerned.

The story behind Marco Polo was spot-on. From what I know of his return from China, Rollins did not deviate from historical record. The science was fascinating, and certainly believable. Rollins does have a background in veterinary medicine, which bears a strik
Jan 15, 2013 Radostina rated it liked it  ·  review of another edition
Shelves: own
I typically enjoy the works of Mr. Rollins, although most of the times I find them a little too far-stretched. This one is no exception to the rule; however, I did find it a tad too shallow and way too naturalistic to my taste.

We have to give Rollins credit for his tremendous imagination. He comes up with ideas, plots and developments that keep surprising me even after having read all his previous works. Every time the basic plot is intruiging, and so is the Marco Polo trail in this book. He tap
Toni Osborne
Sigma Force book 4

An ancient and deadly plague, the Judas Strain, has suddenly re-emerged from the depths of the Indian Ocean, a disease unstoppable and deadly. Dr Lisa Cummings and Monk Kokkalis of SIGMA FORCE search for an answer to this bizarre affliction aboard a cruise liner, transformed into a makeshift hospital. But others had different intentions. In a sudden coup, Guild members hijack the vessel full of plague victims and turn it into a bio-weapons lab.

A world away, SIGMA's Commander Gr
Chilly SavageMelon
I came across this during a period of relatively slim pickings in Asia and will say this isn't the sort of thing I'd usually read. Also, what is said here goes for the entire series: this just happens to be the first I came across. Testament to it's value that I sought out others.

They are combination Secret Agent/ History Detective fusion. What I have yet to figure out is the exact craft of construction that had me laughing at myself during the ongoing frenzied page turning. This stuff is comple
Jan 05, 2013 Doug1134 rated it did not like it  ·  review of another edition
Recommends it for: The illiterate
Recommended to Doug1134 by: Someone who obviously hates me
As a fan of Michael Crichton, James Rollins was recommended to me. After being underwhelmed by Ice Hunt, I figured I'd give Rollins one more shot with The Judas Strain. I didn't care for this one, either. It's a shame, too, because the subjects he chooses to write about are very interesting. But it's clear he doesn't put the level of research into his writing like Clancy or Crichton. As a result, the plot ends up empty with holes. (Why'd he bring his parents along again? If there was no mole, ho ...more
« previous 1 3 4 5 6 7 8 9 next »
topics  posts  views  last activity   
Goodreads Librari...: Book 2266206923 (ISBN13: 9782266206921) add number of pages 3 13 Jan 06, 2016 06:07AM  
scientific intrigue/historical novel 14 101 Apr 16, 2014 03:44AM  
  • The Paris Vendetta (Cotton Malone, #5)
  • Instinct (Chess Team Adventure, #2)
  • The Cult Of Osiris (Nina Wilde & Eddie Chase, #5)
  • Legend (Event Group Thriller #2)
  • The Hidden Oasis
  • The Gilded Seal (Tom Kirk, #3)
  • The Six Sacred Stones (Jack West Jr, #2)
  • River Of Ruin (Philip Mercer, #5)
  • The Book of the Dead (Pendergast, #7; Diogenes, #3)
  • The Ark (Tyler Locke, #1)
  • The Black Diamond (Black Diamond, #2)
James Rollins is a #1 New York Times bestselling author of international thrillers that have been translated into more than forty languages. Known for unveiling unseen worlds, scientific breakthroughs, and historical secrets, Rollins has a knack for breakneck pacing and stunning originality that has been hailed by critics and embraced by millions of readers around the world.
More about James Rollins...

Other Books in the Series

Sigma Force (1 - 10 of 12 books)
  • Sandstorm (Sigma Force, #1)
  • Map of Bones (Sigma Force, #2)
  • Black Order (Sigma Force, #3)
  • The Last Oracle (Sigma Force, #5)
  • The Doomsday Key (Sigma Force, #6)
  • The Devil Colony (Sigma Force, #7)
  • Bloodline (Sigma Force, #8)
  • The Eye of God (Sigma Force #9)
  • The 6th Extinction (Sigma Force, #10)
  • The Bone Labyrinth (Sigma Force, #11)

Share This Book

“It ain't always rocket science, sometimes a door is just a door.” 124 likes
“Are you sure, Gray?'
He lifted his eyes. 'No . . . I'm not. I'm not sure of a damn thing.' He slipped his hands free of the monsignor's and peeled the battery off the phone, cutting the last ring in half. 'But that doesn't mean I won't act.”
More quotes…