Dark & Twisty

Sigma Force Series

18 primary works • 27 total works
Sigma Force, an elite covert arm of the US Defense Department made up of former Special Forces officers trained as experts in various scientific fields:

Book 1

Sandstorm
by
3.96 · 55611 Ratings · 2642 Reviews · published 2004 · 2 editions
An inexplicable explosion rocks the antiquities co…

Shelve Sandstorm

    • Rate it:

    Book 2

    Map of Bones
    by
    4.08     · 63864 Ratings · 1998 Reviews · published 2005 · 100 editions
    The bones lead to ancient mysteries and present-da…

    Shelve Map of Bones

    • Rate it:

    Book 2.5

    Kowalski's in Love
    by
    4.04     · 1683 Ratings · 105 Reviews · published 2006 · 5 editions
    Experience a heart-pumping and thrilling tale of s…

    Shelve Kowalski's in Love

    • Rate it:

    Book 3

    Black Order
    by
    4.16     · 37804 Ratings · 1415 Reviews · published 2006 · 105 editions
    Librarian's note: This is an Alternate Cover Editi…

    Shelve Black Order

    • Rate it:

    Book 4

    The Judas Strain
    by
    4.17     · 34813 Ratings · 1500 Reviews · published 2007 · 120 editions
    New York Times bestselling author James Rollins…

    Shelve The Judas Strain

    • Rate it:

    Book 5

    The Last Oracle
    by
    4.17     · 35510 Ratings · 1125 Reviews · published 2008 · 81 editions
    In Washington, D.C., a homeless man dies in Comman…

    Shelve The Last Oracle

    • Rate it:

    Book 6

    The Doomsday Key
    by
    4.18     · 31908 Ratings · 1228 Reviews · published 2009 · 77 editions
    James Rollins, the "New York Times" bestselling ma…

    Shelve The Doomsday Key

    • Rate it:

    Book 6.5

    The Skeleton Key
    by
    4.14     · 8886 Ratings · 285 Reviews · published 2011 · 8 editions
    From New York Times bestselling author James Rolli…

    Shelve The Skeleton Key

    • Rate it:

    Book 7

    The Devil Colony
    by
    4.19     · 28466 Ratings · 1385 Reviews · published 2011 · 69 editions
    Deep in the Rocky Mountains, a gruesome discovery …

    Shelve The Devil Colony

    • Rate it:

    Book 7.5

    Tracker
    by
    4.11     · 6144 Ratings · 363 Reviews · published 2012 · 11 editions
    From New York Times bestselling author James Rolli…

    Shelve Tracker

    • Rate it:

    Book 8

    Bloodline
    by
    4.25     · 24995 Ratings · 1424 Reviews · published 2012 · 70 editions
    James Rollins takes you to the edge of modern medi…

    Shelve Bloodline

    • Rate it:

    Book 9

    The Eye of God
    by
    4.14     · 21923 Ratings · 1357 Reviews · published 2013 · 26 editions
    The crash of a U.S. military research satellite in…

    Shelve The Eye of God

    • Rate it:

    Book 9.5

    The Devil's Bones: Cotton Malone vs. Gray Pierce
    by
    3.92     · 1291 Ratings · 68 Reviews · published 2014 · 2 editions
    In this short story from the thrilling anthology F…

    Shelve The Devil's Bones: Cotton Malone vs. Gray Pierce

    • Rate it:

    Book 10

    The 6th Extinction
    by
    4.09     · 19755 Ratings · 1343 Reviews · published 2014 · 58 editions
    In a masterful epic of timeless mystery and rip…

    Shelve The 6th Extinction

    • Rate it:

    Book 10.5

    The Midnight Watch
    by
    3.98     · 3970 Ratings · 215 Reviews · published 2015 · 4 editions
    From New York Times bestselling author James Rolli…

    Shelve The Midnight Watch

    • Rate it:

    Book 11

    The Bone Labyrinth
    by
    4.16     · 17680 Ratings · 1386 Reviews · published 2015 · 47 editions
    A war is coming, a battle that will stretch from t…

    Shelve The Bone Labyrinth

    • Rate it:

    Book 11.5

    Crash and Burn
    by
    3.98     · 3205 Ratings · 160 Reviews · published 2016 · 6 editions
    New York Times bestselling author James Rollins co…

    Shelve Crash and Burn

    • Rate it:

    Book 12

    The Seventh Plague
    by
    4.07     · 15124 Ratings · 1061 Reviews · published 2016 · 42 editions
    If the biblical plagues of Egypt truly happened—co…

    Shelve The Seventh Plague

    • Rate it:

    Book 12.5

    Ghost Ship
    by
    4.03     · 2771 Ratings · 130 Reviews · published 2017 · 5 editions
    The discovery of a burned body sprawled on a remot…

    Shelve Ghost Ship

    • Rate it:

    Book 13

    The Demon Crown
    by
    4.21     · 12966 Ratings · 1033 Reviews · published 2017 · 37 editions
    To save mankind’s future, the members of Sigma For…

    Shelve The Demon Crown

    • Rate it:

    Book 14

    Crucible
    by
    4.21     · 12159 Ratings · 963 Reviews · published 2019 · 33 editions
    In the race to save one of their own, Sigma Force …

    Shelve Crucible

    • Rate it:

    Book 15

    The Last Odyssey
    by
    4.19     · 11891 Ratings · 950 Reviews · published 2020 · 4 editions
    To save the world and our future, Sigma Force must…

    Shelve The Last Odyssey

    • Rate it:

    Book 16

    Kingdom of Bones
    by
    4.19     · 9907 Ratings · 757 Reviews · published 2022 · 29 editions
    From #1 New York Times bestselling author James Ro…

    Shelve Kingdom of Bones

    • Rate it:

    Book 17

    Tides of Fire
    by
    4.20     · 8139 Ratings · 584 Reviews · published 2023 · 20 editions
    In the latest riveting thriller from James Rollins…

    Shelve Tides of Fire

    • Rate it:

    Book 18

    Arkangel
    by
    4.22     · 5888 Ratings · 402 Reviews · published 2024 · 15 editions
    From the #1 New York Times master of international…

    Shelve Arkangel

    • Rate it:

    Book 2.5 6.5 7.5 9.5 10.5 11.5 12.5

    Unrestricted Access: The First Thriller Anthology – Sigma Force Adventures with Tucker Wayne & Kane
    by
    4.16     · 1240 Ratings · 153 Reviews · published 2020 · 1 edition
    Experience the exciting breadth of #1 New York Tim…

    Shelve Unrestricted Access: The First Thriller Anthology – Sigma Force Adventures with Tucker Wayne & Kane

    • Rate it:

    Book 1-2, 4, 6

    Sandstorm / Map of Bones / The Judas Strain / The Doomsday Key
    by
    4.60     · 177 Ratings · 5 Reviews · 2 editions
    An inexplicable explosion rocks the antiquities co…

    Shelve Sandstorm / Map of Bones / The Judas Strain / The Doomsday Key

    • Rate it:

    Related series

    Series
    The Order of the Sanguines
    3 primary works • 5 total works
    Series
    Tucker Wayne
    2 primary works • 3 total works
    Series
    Moonfall
    3 primary works • 3 total works
    Series
    Jake Ransom
    2 primary works • 2 total works