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. 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...

A sinister fire in a Copenhagen bookstore ignites a relentless hunt across four continents. Arson and murder reveal an insidious plot to steal a Bible that once belonged to Charles Darwin. And Commander Gray Pierce dives headlong into a mystery that dates back to Nazi Germany...and to horrific experiments performed in a now-abandoned laboratory in Poland. A continent away, madness ravages a remote monastery in Nepal, as Buddhist monks turn to cannibalism...

"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...

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...

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...

When several people are burned to death during the theft of a religious artifact, Gray Pierce, a new member of the U.S. SIGMA force, pursues a clandestine fraternity of alchemists who would use the artifact to establish a new world order.

After a shocking discovery in Masada, Israel, Sergeant Jordan Stone, Father Rhun Korza, and Dr. Erin Granger, racing against time to recover a book written by Christ's own hand, must contend with a force of ancient evil with impossible ambitions and a secret sect within the Vatican called the Sanguines.

The elite scientific military team Sigma Force faces an incurable pandemic with centuries-old ties that seems capable of turning all of nature against humankind, and to stop the threat, they are forced to recruit the assistance of an untrustworthy adversary.

The Sigma Force must solve a centuries-old secret involving coded prophecies about dark events leading to a future apocalypse.

Pregnant veterinarian Maura Kelly, along with U.S. Marshall Jack Menard, risks everything to unravel the mystery of a smuggler's cache of mutated animals, a puzzle that involves fractal intelligence, stem cell research, and a secret history of the Book of Genesis.