The Bone Labyrinth

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.

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Science Fiction Thriller Adventure

Release date: December 2015

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James Rollins

James Rollins is an internationally bestselling author renowned for his action-packed thrillers that blend historical mysteries, cutting-edge science, and gripping adventure. With a background in veterinary medicine and a deep passion for history and science, Rollins brings a unique perspective to his writing, often weaving these elements into his Sigma Force novels and other standalone books. His thrilling, page-turning narratives have earned him a loyal fanbase around the world, making him a leading figure in the realm of scientific thrillers and historical fiction.

Rollins’ most famous series, the Sigma Force, introduces readers to a group of elite, highly trained agents tasked with solving global mysteries while unraveling complex conspiracies. His novels often explore the dark corners of history, archaeology, and cutting-edge science, creating a perfect storm of suspense, excitement, and intellectual intrigue. In books such as Sandstorm, The Last Oracle, and The Judas Strain, Rollins delves into lost civilizations, ancient secrets, and groundbreaking scientific discoveries, all while keeping readers on the edge of their seats with high-stakes action.

His writing style is characterized by fast-paced plots, rich world-building, and meticulously researched details that lend an authentic feel to the action and history portrayed in his books. Rollins’ ability to combine fictional narratives with real-world scientific and historical elements sets his work apart from other authors in the thriller genre, making his novels not just entertaining but thought-provoking as well. The seamless blend of adventure and science makes his books a must-read for fans of action thrillers, historical mysteries, and suspense-filled adventures.

Throughout his career, Rollins has achieved critical acclaim and widespread recognition, with several of his novels appearing on bestseller lists around the world. His books have been translated into numerous languages, and his Sigma Force series, in particular, continues to capture the imagination of readers worldwide. His bestselling novels are known for their intricate plots, relatable characters, and ability to bring scientific and historical subjects to life in an accessible and exciting way.

When he's not writing, Rollins enjoys exploring the world, often drawing inspiration from his travels and experiences in diverse cultures. His background as a trained veterinarian and his interest in cutting-edge technologies and ancient history contribute to the depth and authenticity of the knowledge embedded in his stories. Living in the United States, Rollins has earned recognition as one of the top thriller writers of his generation, and his work continues to captivate readers eager for their next big adventure.

For those who enjoy fast-paced, action-packed novels, historical thrillers, and cutting-edge scientific intrigue, James Rollins is an author whose books promise to deliver an unforgettable reading experience.

Sigma Force

The Sigma Force series is a heart-pounding blend of military thrillers, historical mysteries, and action-packed adventures that have captivated readers worldwide. Created by bestselling author James Rollins, this series has earned critical acclaim for its fast-paced plots, complex characters, and its masterful combination of real-world history and thrilling fictional narratives. Perfect for fans of gripping espionage thrillers, action-packed sagas, and puzzle-filled mysteries, Sigma Force offers an unforgettable reading experience.

At the heart of the series is Sigma Force, an elite covert military unit tasked with solving the world’s most dangerous and mind-bending crises. Comprised of brilliant scientists, former military operatives, and world-class experts, Sigma Force operates in the shadows, preventing global catastrophes before they occur. The series follows the team as they battle dangerous enemies, unravel long-forgotten secrets, and uncover hidden truths buried deep in history. Each novel offers a thrilling ride, blending ancient conspiracies, cutting-edge science, and high-octane action that will keep readers on the edge of their seats.

With a unique ability to seamlessly incorporate real-world historical events, ancient artifacts, and scientific advancements into gripping plots, Sigma Force is more than just an action series—it’s an intellectual adventure. From ancient civilizations to advanced technologies, each book in the series offers a deeper exploration of the world around us, weaving together historical intrigue and modern-day stakes. Whether the team is racing against time to prevent a global disaster or unraveling an ancient puzzle, their dynamic personalities and high-stakes missions make every story a compelling read.

The Sigma Force series has garnered a loyal fan base and widespread acclaim for its intricate plots, smart writing, and attention to detail. Each installment combines elements of suspense, historical fiction, and cutting-edge science into a thrilling narrative that stands out in the genre. Fans of action-adventure novels, spy thrillers, and historical mysteries will find themselves absorbed in this bestselling saga, where every twist and turn heightens the stakes.

A must-read for anyone who loves high-energy thrillers, historical puzzles, and global conspiracy narratives, Sigma Force delivers a unique and captivating blend of adventure and intellect. If you’re looking for a series that combines complex characters with world-changing missions and edge-of-your-seat suspense, this series is sure to keep you hooked from start to finish.

Sigma Force consists of eighteen primary books, and includes six additional books that complement the series but are not considered mandatory reads and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.