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Sigma Force Books In Order (Full List)
Sigma Force is a series of 18 books by James Rollins. The first book published in the series is Sandstorm in 2004. Here is a complete list of Sigma Force books in order.
Last update: October 18, 2026
1. Sandstorm (2004)
Now he embarks upon his most gripping and adventure yet: to a nightmare buried beneath a treacherous desert wasteland.
- 📇 736 Pages
- 📝 184,000 - 220,800 Word Count
- ⏱️ 25 Hours Reading Time
2. Map of Bones (2005)
New to SIGMA, Pierce assembles a crack team of scientific and Special Forces operatives to unravel the mystery of the stolen bones.
- 📇 540 Pages
- 📝 135,000 - 162,000 Word Count
- ⏱️ 18 Hours Reading Time
3. Black Order (2006)
Arson and murder reveal an insidious plot to steal a Bible that once belonged to Charles Darwin, the father of evolutionary theory.
- 📇 509 Pages
- 📝 127,250 - 152,700 Word Count
- ⏱️ 17 Hours Reading Time
4. The Judas Strain (2007)
Operatives of the shadowy covert organization Sigma Force, Dr Lisa Cummings, and Monk Kokkalis search for answers to the bizarre affliction aboard a cruise liner transformed into a makeshift hospital. As the seconds tick closer to doomsday, Sigma’s commander, Gray Pierce.
- 📇 704 Pages
- 📝 176,000 - 211,200 Word Count
- ⏱️ 23 Hours Reading Time
5. The Last Oracle (2008)
In Washington, D.C., a homeless man dies in Commander Gray Pierce's arms, shot by an assassin's bullet.
- 📇 441 Pages
- 📝 110,250 - 132,300 Word Count
- ⏱️ 15 Hours Reading Time
6. The Doomsday Key (2009)
The first clue is discovered inside a mummified corpse buried in an English peat bog—a secret that threatens America and the world.
- 📇 576 Pages
- 📝 144,000 - 172,800 Word Count
- ⏱️ 19 Hours Reading Time
7. The Devil Colony (2010)
After a mountainside massacre yields a grim message, Painter Crowe, director of Sigma Force.
- 📇 647 Pages
- 📝 161,750 - 194,100 Word Count
- ⏱️ 22 Hours Reading Time
8. Bloodline (2012)
What should be a straightforward rescue turns into a fiery ambush and a dangerous act of betrayal.
- 📇 464 Pages
- 📝 116,000 - 139,200 Word Count
- ⏱️ 15 Hours Reading Time
9. The Eye of God (2013)
The last blurry image from the falling satellite captures a sight: a look into the future, a view of a smoldering eastern seaboard of the United States in utter ruin.
- 📇 576 Pages
- 📝 144,000 - 172,800 Word Count
- ⏱️ 19 Hours Reading Time
10. The 6th Extinction (2014)
A remote military research station in Utah sends out a frantic distress call, ending with a final command: Kill us all.
- 📇 587 Pages
- 📝 146,750 - 176,100 Word Count
- ⏱️ 20 Hours Reading Time
11. The Bone Labyrinth (2015)
The two are confronted by Jareth, escape one of his traps, and encounter a troll named Ludo being tormented by goblins.
- 📇 688 Pages
- 📝 172,000 - 206,400 Word Count
- ⏱️ 23 Hours Reading Time
12. The Seventh Plague (2016)
Two years after vanishing into the Sudanese desert, the leader of a British archeological expedition, Professor Harold McCabe, comes stumbling out of the sands, frantic and delirious.
- 📇 425 Pages
- 📝 106,250 - 127,500 Word Count
- ⏱️ 14 Hours Reading Time
13. The Demon Crown (2017)
On the frontlines of an emerging primordial threat, Commander Grayson Pierce of Sigma Force reluctantly teams up with a newly resurrected Guild in hopes of stopping the extinction level threat.
- 📇 464 Pages
- 📝 116,000 - 139,200 Word Count
- ⏱️ 15 Hours Reading Time
14. Crucible (2018)
Arriving home on Christmas Eve, Commander Gray Pierce learns his house ransacked, his pregnant lover missing, and his best friend's wife, Kat, unconscious on the kitchen floor.
- 📇 480 Pages
- 📝 120,000 - 144,000 Word Count
- ⏱️ 16 Hours Reading Time
15. The Last Odyssey (2020)
Sigma Force answers the threat in "The Last Odyssey".
- 📇 528 Pages
- 📝 132,000 - 158,400 Word Count
- ⏱️ 18 Hours Reading Time
16. Kingdom of Bones (2022)
Sigma Force answers the threat in "Kingdom of Bones".
- 📇 448 Pages
- 📝 112,000 - 134,400 Word Count
- ⏱️ 15 Hours Reading Time
17. Tides of Fire (2023)
Sigma Force answers the threat in "Tides of Fire".
- 📇 480 Pages
- 📝 120,000 - 144,000 Word Count
- ⏱️ 16 Hours Reading Time
18. Arkangel (2024)
Sigma Force answers the threat in "Arkangel".
- 📇 528 Pages
- 📝 132,000 - 158,400 Word Count
- ⏱️ 18 Hours Reading Time