In the dead of night, a decrepit, unmarked motor yacht drifts into the medieval port of Vernazza, Italy. The run-down vessel forms a jarring contrast to the pastel colored tower homes and terraced vineyards surrounding the natural harbor along the coast of Cinque Terra. Less than 50 yards away, a man wakes up on board a small rowboat, covered in blood. Lying next to him is a woman with two - execution style - bullet holes to her forehead.   

A city cloaked in a legend too fanciful to be true. An ancient tribe, who have vowed to protect their Gods until the end of time. A shipwreck scattered with gold, and drawings of a mythical beast. Sam Reilly is on the hunt to find an ancient tomb, before El Dorado is lost forever....

On board Phoenix Airlines Flight 320, Andrew Goddard awakens to discover the cockpit empty and all the passengers unconscious. In the Colorado Monarch Mountains, an old gold miner discovers a fiendish stone mask sealed inside an obsidian chamber. Sam Reilly has just three weeks to find out how the two unlikely events are connected, and the secret behind it might change everything we thought we knew about humanity.

Fifteen years ago, eight-year-old Ethan Jones watched a stranger bury something in the mining ruins of the Rhyolite Desert in Nevada. Even at his young age, he knew what he’d just seen was important. In present day, a US Navy SEAL takes refuge in a secret chamber beneath the ancient streets of Syria and discovers an unusual stone artifact, like nothing he’d ever seen before.

Sam Reilly and his team are called in to investigate what happened on board Carpe Diem. But what at first appears to be a simple boating accident soon turns into a deadly game of international intrigue - sending America and Russia racing toward each other on an unavoidable collision course.

On May 18th, 1863 - the day the siege of the Confederate stronghold at Vicksburg began - a secret war chest was removed by an ironclad and taken away. It contained a covenant capable of altering the entire course of the Civil War. Its destination was Washington, D.C., a place it never reached. In the present day, Minnesotan senator Arthur Perry enlists Sam Reilly to track down his son, who went missing while following a strange lead in the centuries-old search for the fabled Meskwaki Gold Spring within Lake Superior. These two events, separated by more than 150 years, are inextricably linked....

Extreme weather conditions are wreaking havoc on the world, and baffled scientists are unable to discover the cause. The most powerful hurricane in history approaches New York, while at the same time atmospheric rivers flood Las Vegas. Most bizarre of all: a tempestuous mass of dark, foreboding sky seems to be spreading across the globe. In Arizona, an astronomer tries to decipher the hidden message inside a 13,000-year-old megalithic stone, which just might hold the key to everything. Can Sam Reilly and his unique team break the Code to Extinction?

On March 11, 2011, the Japanese fishing trawler Hoshi Maru accidentally hauled up something deadly into its live-fish hold. The crew, having discovered their mistake, raced toward the harbor in the hope that they might survive. They never made it. Presumed sunk by the tsunami that ravaged the coastline of Japan, its crew were declared dead. Seven years later, the shipwreck washed up on Cannon Beach, Oregon....

A Russian cargo ship sinks in the shallow waters of the Bering Strait, and somehow vanishes without a trace. In the Colorado Plateau Desert, a cowboy follows a river of sand into an undiscovered ruin. A tunnel-boring operation between the Alaskan and Siberian peninsulas is stalled when its largest burrowing machine disappears into an abyss. Sam Reilly leads a search and rescue mission for the missing ship and crew. What should be a simple operation quickly turns into something much more dangerous.

In AD 79, Mount Vesuvius erupted, and a small girl raced for her life along the cobblestone streets of Pompeii. She needed to survive. She needed to tell someone what she had done so that it could never happen again. In present day, while Sam Reilly is on a mission to locate the long-lost shipwreck of legendary explorer Ernest Shackleton, a strange code begins to circulate on the internet.