Sean Wyatt quit working for the United States government years ago but after recent events, he's come to realize his particular set of skills might still be needed to keep the world a little safer. With an evil mastermind behind a twisted plot, Sean is on the clock with less than 72 hours to find a Nazi device known as die glocke [the bell] before a for-profit terrorist cell known as The Black Ring executes an innocent woman. 

Could you sacrifice the lives of millions to save your daughter? When an archaeologist's daughter is abducted, he must find a powerful ancient relic to save her life but at the cost of millions of lives. Or is there another option?

For millennia, stories of God’s greatest prophets have inspired Christians across the world, urging them toward the kind of faith that compelled these celebrated sages of old. But one modern madman wants that power for himself - to conquer a world he views as filled with unrepentant sinners as he ushers in a new age of religious rule.

When Sean Wyatt and his longtime friend, Tommy Schultz, try to help a troubled Japanese woman, they find themselves right in the thick of a power struggle between some of the most dangerous gangsters in the world. Now Sean and company must race across Japan, unravel clues that were left decades before, and discover the true location of a blade made by the greatest sword maker of all time: Honjo Masamune.

The thrilling finale of The Lost Chambers trilogy sends former government agent Sean Wyatt and his sidekick Tommy Schultz deep into the heart of some of the oldest mountains in the world in search of a treasure that many believed were lost to antiquity. While the two and their new friend Adriana Villa race toward their goal, they encounter deadly villains and a man with an evil plan that could wipe out most of civilization.

A 4,000-year-old mystery lurks in the hills of Georgia. While investigating a strange series of ancient symbols, an archaeologist vanishes, and a professor he entrusted with the secret is murdered. Former government agent Sean Wyatt learns of his friend's disappearance and the murder. Now he must unravel the clues to the ancient mystery that holds incredible power.

In France, a member of a secret guild is killed for the secrets he keeps. In Croatia, a stronghold is breached, and a treasure is stolen. At the Vatican, a corrupt pontiff views Kimball Hayden as a threat to his rule. When a Croatian stronghold is breached and scores are killed, a religious icon is stolen that contains a dark particle that’s powerful enough to either create worlds or destroy them. With a corrupt pontiff who sees Kimball Hayden as a threat to his power, Pope Clement XV mobilizes the Vatican Knight without his team to retrieve the dark particle.

During a visit to the United States, Pope Pius XIV is caught within the crosshairs of a lethal assassin. After scores of people are killed during an event featuring the Pope's address, a conspiracy theory emerges that the killings were conducted by one of the CIA’s own. As the data trickles in, it becomes clear that the assassin is none other than Shari Cohen. 

In central Syria, villages are razed as young men are conscripted to join the ISIS faction. In a Doctors Without Borders camp which is overrun by members of the Islamic State, people are abducted along with a priest Father Savino. He also happens to be the brother of the Vatican’s Secretariat of State. From the green zone in Iraq, Shari Cohen, now a CIA consultant and operator, learns that she must appropriate intel from the resurging ISIS force to stop them from striking international targets.

In Egypt, those within the Saint Catherine Monastery are brutally attacked and a secret that has been hidden for more than 3,500 years is stolen. In Zurich, an arms dealer makes an agreement with a band of elite terrorists for one-of-a-kind weapons of mass destruction, for a treasure that was presumed destroyed during the Exodus. When a conversation between two men is covertly videotaped by an operator of the CIA, Vatican Intelligence and the Mossad realize that the partial message received was filled with enigmas.

While traveling across the United States during the Papal Symposium, the papal plane, Shepherd One, is commandeered by a terrorist cell calling itself the Muslim Revolutionary Front. On board: a nuclear payload with half the yield that destroyed Hiroshima. Their demand to the US government: assassinate the five leading principals of Mossad.

In Virginia, a Blacksite facility is assaulted with military sophistication to free a homegrown terrorist who once attempted to assassinate FBI Specialist Shari Cohen. Within days, two of America’s most iconic symbols of freedom are razed. In Rome, Kimball Hayden’s demons are at their worst, the man becoming a shell of his former self. But when he learns that Shari Cohen’s assassin is on the loose, he embarks on a trip of rediscovery that unites him with the woman he loves.

The time has come for Cassiopeia Vitt to sell her ancestral home. It sits on a Spanish bluff by the Mediterranean Sea, and bears the name Casa de Hace Mucho Tiempo, House of Long Ago. Trapped inside its walls are memories from a time when Cassiopeia was growing from a rebellious adolescent into a thoughtful young woman - regretful times when she often found herself estranged from her parents. Also inside, are 15 paintings, each one a masterpiece, together representing an investment in the 10s of millions of euros - her father’s private art collection - which she intends to donate.

Before Kimball Hayden became a Vatican Knight, he was the commander of the Pieces of Eight, a kill squad that worked as part of a black-arm force of the CIA. He kills with impunity and acts with the cold fortitude of a machine. But when he begins to question the morality of his actions and the motives of his superiors, he is placed within the crosshairs by high-end principals who want to see him dead.

Thirty years ago, the world was in the exploratory stages of creating a technology capable of artificial intelligence. Thirty years later, that technology has been perfected. In a lab somewhere in a remote mountain region in Iran, nanoparticles, or micro-bots, have been created to be self-sustaining and self-reproducing, each day evolving and learning from experience. They have been programmed to be the ultimate predator, devouring everything in their path and leaving nothing behind.