Reading Order
Sigma Forceseries.seoTitleShort
Start with Sandstorm and continue through all 25 books in the listed reading order.
Start Here
Start with Sandstorm
Book 1 by James Rollins
Use the reading order above to move through the series in the intended sequence.
Complete List
Sigma Force reading order
Ends with Arkangel
- 1
Book 1:Sandstorm
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 2
Book 2:Map of Bones
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 3
Book 3:Kowalski's in Love
James Rollins • 2006
A Sigma Force short story that drops Kowalski into an off-the-books mystery far from headquarters. What starts as a personal detour turns dangerous fast, and his instincts may be the only thing keeping people alive.
- 4
Book 4:Black Order
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 5
Book 5:The Judas Strain
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 6
Book 6:The Last Oracle
James Rollins • 2008
When children with rare genetic traits become targets, Sigma Force starts asking questions no one wants answered. Gray Pierce follows the trail from secret labs to ancient sites, where a long-buried mystery meets cutt...
- 7
Book 7:The Doomsday Key
James Rollins • 2009
A baffling murder investigation leads Sigma Force toward an ancient secret tied to disease and power. Gray Pierce follows cryptic symbols across Europe, trying to stop a discovery that could unleash a modern doomsday.
- 8
Book 8:The Devil Colony
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 9
Book 9:The Skeleton Key
James Rollins • 2011
A Sigma Force short story sparked by an ordinary-looking key that unlocks a dangerous secret. As hidden files and forgotten doors open, a small clue becomes a lethal target—and stopping the leak matters more than surv...
- 10
Book 10:Bloodline
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 11
Book 11:Tracker
James Rollins • 2012
Former Army Ranger Tucker Wayne and his military working dog, Kane, take on a mission that tests their bond and their instincts. What begins as a search turns into a pursuit with lives on the line and no room for mist...
- 12
Book 12:The Eye of God
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 13
Book 13:The Devil's Bones
James Rollins • 2014
On an Amazon river cruise, Cotton Malone teams up with Sigma Force commander Gray Pierce to stop a rogue botanist. Their target wants to sell a rare orchid that produces a deadly neurotoxin, and the buyers aren’t worr...
- 14
Book 14:The 6th Extinction
James Rollins • 2014
A mystery tied to vanished species sends Sigma Force from ancient sites to modern laboratories. As the team uncovers what drove previous mass extinctions, they realize the next one could be engineered—and humanity is...
- 15
Book 15:The Midnight Watch
James Rollins • 2015
A Sigma Force short story that flashes back to a tense solo operation. With limited support and a mystery that won’t stay buried, the agent at the center must decide who to trust before the night ends in disaster.
- 16
Book 16:The Bone Labyrinth
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 17
Book 17:Crash and Burn
James Rollins • 2016
Tucker Wayne and his military working dog, Kane, are drawn into a rescue that turns into a manhunt. In hostile terrain and with a ruthless opponent closing in, the pair must rely on training, loyalty, and raw enduranc...
- 18
Book 18:The Seventh Plague
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 19
Book 19:Ghost Ship
James Rollins • 2017
A burned body on an isolated Australian beach drags Gray Pierce and Seichan into a centuries-old mystery. The trail leads to a vanished convict ship, where mutiny, treasure, and modern betrayal collide.
- 20
Book 20:The Demon Crown
James Rollins • 2017
A violent attack and a strange biological threat pull Sigma Force into a case that spans oceans and islands. As engineered organisms and environmental chaos collide, Gray Pierce realizes an ancient catastrophe may not...
- 21
Book 21:Crucible
James Rollins
Use the reading order above to move through the series in the intended sequence.
- 22
Book 22:The Last Odyssey
James Rollins • 1 recommendation
Use the reading order above to move through the series in the intended sequence.
- 23
Book 23:Kingdom of Bones
James Rollins • 2022
Villagers in the Congo are found in a catatonic state while the surrounding wilderness grows smarter and more lethal. Sigma Force investigates a force that could accelerate evolution—and spread far beyond the jungle.
- 24
Book 24:Tides of Fire
James Rollins • 2023
An international research station in the Coral Sea comes under attack during a cascading geological disaster—quakes, tsunamis, and eruptions. Sigma Force must uncover what’s been buried deep in the planet before the c...
- 25
Book 25:Arkangel
James Rollins • 2024
A Vatican archivist is executed in Moscow, but not before he sends a coded warning to Gray Pierce. Sigma Force races to find a legendary hidden library and the map to Hyperborea—before its discovery sparks disaster.
Guru Endorsements
Thought Leaders Who Read This Series
Quick Answers
Sigma Force FAQ
What is the best order to read the Sigma Force series?
The recommended reading order is the numbered order shown on this page, starting with Sandstorm.
How many books are in the Sigma Force series?
There are 25 books currently listed in the Sigma Force series on GurusReads.
Where should I start with the Sigma Force series?
New readers should start with Sandstorm, the first book in the reading order.
Is the Sigma Force series complete?
Based on the publication years we have, the series appears possibly ongoing and spans releases from 2006 to 2024.