Book 1

Sandstorm

by James Rollins

Published 29 June 2004
Twenty years after a wealthy British financier disappears near the site of a lost fabled city, the man's daughter leads an expedition of scientists in search of the city, which harbors a powerful but dangerous energy source.

Book 2

Map of Bones

by James Rollins

Published 26 April 2005

The horrific theft of a priceless relic...a secret society reaching back to the Middle Ages...and the top-flight US team who must stop them. A heart-stopping SIGMA Force thriller from NEW YORK TIMES bestselling author James Rollins.

When a group of parishioners is burned to death in a German cathedral, the US sends in SIGMA Force. For this tragedy is more than a case of arson - someone has stolen the priceless treasure stored in the cathedral's golden reliquary: the bones of the biblical Three Kings.

Commander Gray Pierce leads a team on the hunt for the Royal Dragon Court, a clandestine aristocratic fraternity of alchemists that dates back to the Middle Ages and seeks to establish a new world order using the mystical bones. Pierce and his team follow a trail that leads from Europe's Gothic cathedrals through the remnants of the seven wonders of the ancient world to a mystical place where science and religion unite to unleash a threat not seen since the beginning of time itself...


Book 3

Black Order

by James Rollins

Published 1 June 2006
Go to the ends of the earth and back with the elite scientists of Sigma Force as they race to crack the ultimate mystery of mankind, a quest that will save or destroy us. From the frozen peaks of the Himalayas to the diamond fields of the Congo, from the subterranean labs of a lost era to the glittering halls of the Smithsonian, Sigma Force will face its most cunning adversaries, its most daunting challenges, and its most dire threat to unravel our most perplexing scientific mystery - the origins of life - a secret locked within cryptic runes. And the very future of mankind will belong to the victor. For any hope of success, former U.S. Navy SEAL Painter Crowe, head of the counterespionage team, must make a pact like no other: to align Sigma Force with an old enemy. And it will be up to Commander Gray Pierce to find the balance between salvation and damnation, even it if means sacrificing those closest to him. But victory is far from certain, for there are some riddles that even the greatest minds were never meant to solve...

Book 4

The Judas Strain

by James Rollins

Published 2 July 2007
Buried deep within a jungle, ancient ruins conceal a deadly secret...Buried in a tomb in Venice, a great explorer hides a truth that could shatter history...Buried in our own genetic code, a mystery like no other...But nothing stays buried forever-and it will be up to Sigma Force to face what will be unearthed: a plague beyond any cure, a scourge that turns all of Nature against mankind. From the high seas of the Indian Ocean to the dark jungles of Southeast Asia, from the canals of Venice to the crypts of ancient kings, Sigma Force must piece together a mystery that, unless solved, will end all life on our planet. But even this challenge may prove too large for Sigma Force alone. With a worldwide pandemic growing, Painter Crowe and Commander Gray Pierce turn to their deadliest adversaries for help, teaming up with a diabolical foe who thwarted them in the past. But can the enemy be trusted even now? Or will they prove to be another Judas?

Book 5

The Last Oracle

by James Rollins

Published 24 June 2008
What if you could bio-engineer the next great world prophet, to scientifically produce the next Buddha, the next Mohammed, or the next Jesus? Would it mark the Second Coming or initiate a chain reaction leading to the end of mankind? A thinktank of world scientists formed during the Cold War has discovered a way to manipulate and enhance autistic children who show savant talents - mathematical geniuses, statistical masterminds, brilliant conceptual artists - but a strange side-effect begins to arise. Before it can be analyzed fully, a rogue group of scientists begin their own secret experimentation with a cadre of the best children. They seek to create a world prophet for the new millennium, one to be manipulated to create a new era of global peace...a peace on their own terms. But such manipulation has grim consequences as a biological meltdown among the children begins to occur - turning the innocent into something frightening. Can Commander Gray Pierce and his elite SIGMA Force stop the experiments before they engineer the extinction of mankind? It will be a race against time to solve a mystery that dates back to the first famous oracle of history - the Oracle of Delphi...

Book 6

The Doomsday Key

by James Rollins

Published 23 June 2009
At Princeton University, a famed geneticist dies inside a biohazard lab. In Rome, a Vatican archaeologist is found dead in the heart of St. Peters Basilica. In Africa, a US Senator's son is slain within a Red Cross camp in Ghana. These three murders on three continents bear a horrifying tie: all the victims are marked by a Druidic pagan cross burned into their flesh. The bizarre murders thrust Commander Gray Pierce and Sigma Force into a global hunt for a powerful group of industrialists who have a stranglehold on the world's food supply. Aided by two women from his past, Gray flees a trio of high-tech assassins as he pieces together the clues. But saving the world comes at a high price: Pierce must sacrifice one of the women. Yet even that price might not be enough, for, as he soon discovers, the only true path to salvation lies with the Doomsday Key.

Book 6.5

The Skeleton Key

by James Rollins

Published 31 May 2011

From New York Times bestselling author James Rollins comes a thrilling short story that delves deep beneath the city of Paris to a dark necropolis, where the only means for escape is... The Skeleton Key.

Seichan is ripped out of the Sigma Force series for an adventure all her own - but can she survive?

The beautiful and elusive assassin wakes in a hotel in Paris with a deadly electronic collar fastened to her throat. Joined by a boy who is similarly threatened, she must rescue the son of a hated enemy, who has fallen under the sway of the nefarious leader of an apocalyptic cult. To survive, she must venture into the dark world beneath the City of Lights, into the infamous catacombs of Paris.

Caught between two enemies, she must fight for her life - while time ticks down toward a fiery apocalypse. But in the dark, surrounded by the moldering bones of the dead, even success does not equal survival. In the end, the only true hope for the world lies in a stunning act of betrayal.


Book 7

The Devil Colony

by James Rollins

Published 21 June 2011
'Nobody - and I mean nobody - does this stuff better than Rollins' LEE CHILD Deep in the Rocky Mountains, a gruesome discovery - hundreds of mummified bodies - stirs international attention and fervent controversy. Despite doubts to the bodies' origins, the local Native American Heritage Commission lays claim to the prehistoric remains, along with the strange artefacts found in the same cavern: gold plates inscribed with an unfathomable script. During a riot at the dig site, an anthropologist dies horribly in an explosion. All evidence points to a radical group of Native Americans, including a teenage firebrand who escapes with a vital clue to the murder and calls on the one person who might help - her uncle, Painter Crowe, director of Sigma Force. To protect his niece and uncover the truth, Painter will ignite a war across the nation's most powerful intelligence agencies. Yet, an even greater threat looms as events in the Rocky Mountains have set in motion a frightening chain reaction, a geological meltdown that threatens the entire western half of the U.S.
From the volcanic peaks of Iceland to the blistering deserts of the American Southwest, Painter Crowe joins forces with commander Gray Pierce to penetrate the heart of a dark cabal, one that has been manipulating American history since the founding of the thirteen colonies...

Book 7.5

Tracker

by James Rollins

Published 5 June 2012

In the medieval heart of Budapest, Captain Tucker Wayne and his war dog, Kane, rescue a mysterious woman fleeing three armed men. The secret she holds will unlock a terrible treasure, one steeped in blood and treachery, tied to a crime going back to the fall of Nazi Germany, and a heritage of suffering and pain that reaches out from the past to wreak havoc in the present.

In a final showdown in the depths of a lost cemetery, truths will be unearthed, secrets exposed, and the fate of all will rest upon the shoulders of one man and a dog whose courage is beyond measure.

Featuring an extract from BLOODLINE.


Book 8

Bloodline

by James Rollins

Published 26 June 2012

In a thrilling masterwork that will make you rethink your perceptions of life and death, New York Times bestselling author James Rollins takes you to the edge of medicine, genetics, and technology, revealing the next evolutionary leap forward: immortality.

Galilee, 1025. Infiltrating an ancient citadel, a Templar knight uncovers a holy treasure long hidden within the fortress's labyrinth: the Bachal Isu - the staff of Jesus Christ - a priceless icon that holds a mysterious and terrifying power that promises to change humankind for ever.

A millennium later, Somali pirates hijack a yacht off the coast of the Horn of Africa, kidnapping a young pregnant American woman. Commander Gray Pierce is enlisted for a covert rescue mission into the African jungle. The woman is no rich tourist: she's Amanda Gant-Bennett, daughter of the U.S. president.

Suspicious that the kidnapping masks a far more nefarious plot, Gray must confront a shadowy cabal which has been manipulating events throughout history... and now challenges the current presidency.

Halfway around the world, a firebombing at a fertility clinic in South Carolina exposes a conspiracy that goes back centuries... a scheme that lies within our genetic code. With time against them, SIGMA must race to save an innocent unborn baby whose very existence raises questions about the nature of humanity, asking:

Could you live forever?

Would you live forever?


Book 9

The Eye of God

by James Rollins

Published 25 June 2013
"Commander Gray Pierce and Sigma Force--joined by a pair of Vatican historians--race to discover a truth tied to the fall of the Roman Empire, to a mystery bound in the roots of Christianity's origins, and to a weapon hidden for centuries that holds the fate of humanity"--Page 4 of cover.

Book 10

The 6th Extinction

by James Rollins

Published 1 August 2014
A remote military research station in Utah sends out a frantic distress call, ending with a chilling final command: Kill us all! Personnel from the neighbouring base rush in to discover everyone already dead - and not just the scientists, but every living thing for fifty square miles has been annihilated. The land is entirely sterile-and the blight is spreading. To halt the inevitable, Commander Gray Pierce and Sigma must unravel a threat that rises out of the distant past, to a time when Antarctica was green and all life on Earth balanced upon the blade of a knife. Following clues from an ancient map rescued from the lost Library of Alexandria, Sigma will discover the truth about an ancient continent, about a new form of death buried under miles of ice.

Book 10.5

The Midnight Watch

by James Rollins

Published 3 November 2015

Book 11

The Bone Labyrinth

by James Rollins

Published 15 December 2015

A war is coming, a battle that will stretch from the prehistoric forests of the ancient past to the cutting-edge research labs of today, all to reveal a true mystery buried deep within our DNA, a mystery that will leave readers changed forever . . .

In this groundbreaking masterpiece of ingenuity and intrigue that spans 50,000 years in human history, New York Times bestselling author James Rollins takes us to mankind’s next great leap.

But will it mark a new chapter in our development . . . or our extinction

In the remote mountains of Croatia, an archaeologist makes a strange discovery:  a subterranean Catholic chapel, hidden for centuries, holds the bones of a Neanderthal woman. In the same cavern system, elaborate primitive paintings tell the story of an immense battle between tribes of Neanderthals and monstrous shadowy figures. Who is this mysterious enemy depicted in these ancient drawings and what do the paintings mean

Before any answers could be made, the investigative team is attacked, while at the same time, a bloody assault is made upon a primate research center outside of Atlanta. How are these events connected Who is behind these attacks  The search for the truth will take Commander Gray Pierce of Sigma Force 50,000 years into the past. As he and Sigma trace the evolution of human intelligence to its true source, they will be plunged into a cataclysmic battle for the future of humanity that stretches across the globe . . . and beyond.

With the fate of our future at stake, Sigma embarks on its most harrowing odyssey ever—a breathtaking quest that will take them from ancient tunnels in Ecuador that span the breadth of South America to a millennia-old necropolis holding the bones of our ancestors. Along the way, revelations involving the lost continent of Atlantis will reveal true mysteries tied to mankind’s first steps on the moon. In the end, Gray Pierce and his team will face to their greatest threat: an ancient evil, resurrected by modern genetic science, strong enough to bring about the end of man’s dominance on this planet.

Only this time, Sigma will falter—and the world we know will change forever.


Book 11.5

Crash and Burn

by James Rollins

Published 15 November 2016

Book 12

The Seventh Plague

by James Rollins

Published 13 December 2016

In a breathtaking blend of scientific intrigue and historical mystery, #1 New York Times bestselling mastermind James Rollins reveals an ancient threat hidden within the pages of the Bible, one that threatens the modern world in The Seventh Plague If the biblical plagues of Egypt truly happened-could they happen again-on a global scale

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, but he dies before he can tell his story. The mystery deepens when an autopsy uncovers a bizarre corruption: someone had begun to mummify the professor's body-while he was still alive.

His strange remains are returned to London for further study, when alarming news arrives from Egypt. The medical team who had performed the man's autopsy has fallen ill with an unknown disease, one that is quickly spreading throughout Cairo. Fearing the worst, a colleague of the professor reaches out to a longtime friend: Painter Crowe, the director of Sigma Force. The call is urgent, for Professor McCabe had vanished into the desert while searching for proof of the ten plagues of Moses. As the pandemic grows, a disturbing question arises.

Are those plagues starting again

Before Director Crowe can investigate, a mysterious group of assassins leaves behind a fiery wake of destruction and death, erasing all evidence. With the professor's body incinerated, his home firebombed, Sigma Force must turn to the archaeologist's only daughter, Jane McCabe, for help. While sifting through what's left of her father's work, she discovers a puzzling connection tying the current threat to a shocking historical mystery, one involving the travels of Mark Twain, the genius of Nikola Tesla, and the adventures of famous explorer Henry Morgan Stanley.

To unravel a secret going back millennia, Director Crowe and Commander Grayson Pierce will be thrust to opposite sides of the globe. One will search for the truth, traveling from the plague-ridden streets of Cairo to a vast ancient tomb buried under the burning sands of the Sudan; the other will struggle to stop a mad genius locked within a remote Arctic engineering complex, risking the lives of all those he holds dear.

As the global crisis grows ever larger, Sigma Force will confront a threat born of the ancient past and made real by the latest science-a danger that will unleash a cascading series of plagues, culminating in a scourge that could kill all of the world's children . . . decimating humankind forever.

Book 13

The Demon Crown

by James Rollins

Published 5 December 2017

“Bone-chilling.” –Publishers Weekly (Starred Review)

“One of the best in the series.” –Booklist (Starred Review)

To save mankind’s future, the members of Sigma Force must make a devil’s bargain as they join forces with their most hated enemy to stop an ancient threat in this gripping adventure from #1 New York Times bestselling author James Rollins.

Off the coast of Brazil, a team of scientists discovers a horror like no other, an island where all life has been eradicated, consumed, and possessed by a species beyond imagination. Before they can report their discovery, a mysterious agency attacks the group, killing them all, save one: an entomologist, an expert on venomous creatures, Professor Ken Matsui from Cornell University.

Strangest of all, this inexplicable threat traces back to a terrifying secret buried a century ago beneath the National Mall: a cache of bones preserved in amber. The artifact was hidden away by a cabal of scientists—led by Alexander Graham Bell—to protect humankind. But they dared not destroy it, for the object also holds an astonishing promise for the future: the very secret of life after death.

Yet nothing stays buried forever. An ancient horror— dormant in the marrow of those preserved bones—is free once more, nursed and developed into a weapon of incalculable strength and malignancy, ready to wreak havoc on an unsuspecting world.

To stop its spread, Commander Grayson Pierce of Sigma Force must survive a direct attack on the island of Maui. To be there first has always been the core mission of Sigma Force, a covert team forged to be America’s front line against emerging threats. But this time, even Sigma may not be able to decipher the deadly mystery, one that traces back to the founding of the Smithsonian Institution.

With each new discovery, the menace they hunt is changing, growing, spreading—adapting and surviving every attempt to stop it from reconquering a world it once ruled. And each transformation makes it stronger . . . and smarter.

Running out of time and options, Commander Grayson Pierce will be forced to make an impossible choice. To eradicate this extinction-level threat and expose those involved, he will have to join forces with Sigma’s greatest enemy—the newly resurrected Guild—even if it means sacrificing one of his own.


Book 14

Crucible

by James Rollins

Published 17 December 2018

In the race to save one of their own, Sigma Force must wrestle with the deepest spiritual mysteries of mankind in this mind-expanding adventure from #1 New York Times bestselling author James Rollins, told with his trademark blend of cutting edge science, historical mystery, and pulse-pounding action.

Arriving home on Christmas Eve, Commander Gray Pierce discovers his house ransacked, his pregnant lover missing, and his best friend’s wife, Kat, unconscious on the kitchen floor. With no shred of evidence to follow, his one hope to find the woman he loves and his unborn child is Kat, the only witness to what happened. But the injured woman is in a semi-comatose state and cannot speak—until a brilliant neurologist offers a radical approach to "unlock" her mind long enough to ask a few questions.

What Pierce learns from Kat sets Sigma Force on a frantic quest for answers that are connected to mysteries reaching back to the Spanish Inquisition and to one of the most reviled and blood-soaked books in human history—a Medieval text known as the Malleus Maleficarum, the Hammer of Witches. What they uncover hidden deep in the past will reveal a frightening truth in the present and a future on the brink of annihilation, and force them to confront the ultimate question: What does it mean to have a soul?


Book 15

The Last Odyssey

by James Rollins

Published 23 March 2020

To save the world and our future, Sigma Force must embark on a dangerous odyssey into an ancient past whose horrors are all too present in this page-turning thriller from #1 New York Times bestselling author James Rollins that combines cutting-edge science, historical mystery, mythology, and pulse-pounding action.

For eons, the city of Troy—whose legendary fall was detailed in Homer’s Iliad—was believed to be myth, until archaeologists in the nineteenth century uncovered its ancient walls buried beneath the sands. If Troy was real, how much of Homer’s twin tales of gods and monsters, curses and miracles—The Iliad and The Odyssey—could also be true and awaiting discovery?

In the frozen tundra of Greenland, a group of modern-day researchers stumble on a shocking find: a medieval ship buried a half-mile below the ice. The ship’s hold contains a collection of even older artifacts—tools of war—dating back to the Bronze Age. Inside the captain’s cabin is a magnificent treasure that is as priceless as it is miraculous: a clockwork gold map imbedded with an intricate silver astrolabe. The mechanism was crafted by a group of Muslim inventors—the Banū Mūsā brothers—considered by many to be the Da Vincis of the Arab world—brilliant scientists who inspired Leonardo’s own work.

Once activated, the moving map traces the path of Odysseus’s famous ship as it sailed away from Troy. But the route detours as the map opens to reveal a fiery river leading to a hidden realm underneath the Mediterranean Sea. It is the subterranean world of Tartarus, the Greek name for Hell. In mythology, Tartarus was where the wicked were punished and the monstrous Titans of old, imprisoned.

When word of Tartarus spreads—and of the cache of miraculous weapons said to be hidden there—tensions explode in this volatile region where Turks battle Kurds, terrorists wage war, and civilians suffer untold horrors. The phantasmagoric horrors found in Homer’s tales are all too real—and could be unleashed upon the world. Whoever possesses them can use their awesome power to control the future of humanity.

Now, Sigma Force must go where humans fear to tread. To prevent a tyrant from igniting a global war, they must cross the very gates of Hell.


Book 16

Kingdom of Bones

by James Rollins

Published 19 April 2022

From #1 New York Times bestselling author James Rollins, the latest riveting, deeply imaginative thriller in the Sigma Force series, told with his trademark blend of cutting-edge science, historical mystery, and pulse-pounding action.

It begins in Africa . . .

A United Nations relief team in a small village in the Congo makes an alarming discovery. An unknown force is leveling the evolutionary playing field. Men, women, and children have been reduced to a dull, catatonic state. The environment surrounding them—plants and animals—has grown more cunning and predatory, evolving at an exponential pace. The insidious phenomenon is spreading from a cursed site in the jungle — known to locals as the Kingdom of Bones —and sweeping across Africa, threatening the rest of the world.

What has made the biosphere run amok? Is it a natural event? Or more terrifyingly, did someone engineer it?

Commander Gray Pierce and Sigma Force are prepared for the extraordinary and have kept the world safe, vigilance for which they have paid a tragic personal price. Yet, even these brilliant and seasoned scientific warriors do not understand what is behind this frightening development—or know how to stop it. As they race to find answers, the members of Sigma quickly realize they have become the prey.

To head off global catastrophe, Sigma Force must risk their lives to uncover the shattering secret at the heart of the African continent—a truth that will illuminate who we are as a species and where we may be headed . . . sooner than we know.

Mother Nature—red in tooth and claw—is turning against humankind, propelling the entire world into the Kingdom of Bones.