Amid the grandeur of the Vatican, the bones of Saint Peter—the Church’s most sacred relics—hold secrets that could reshape its history. Father Michael Dominic, Prefect of the Vatican Secret Archives, uncovers a mysterious, nearly forgotten inscription linking Linus, Saint Peter’s first successor, to foundational decisions that shaped the early Church. What begins as a scholarly exploration of Linus’s legacy quickly turns into an urgent quest to protect the truth.

When ex-MI5 operative Joe Mason is sent to Rome to guard an elderly professor and his daughter, he thinks he’s in for an easy ride. But on their first day in the Vatican secret archives, a masked assassin gains entry, shoots Joe’s client in cold blood and steals an ancient manuscript. Giving chase, Joe can’t imagine what could lie within those pages that would make someone willing to kill. The search for answers leads Joe and his comrades in a race against time, across continents and into treacherous mountains.

Jacob Snow—elite soldier-turned-CIA agent, haunted by his tortured past—is one of the CIA’s greatest assets and is dispatched when the stakes are highest. When an ancient Egyptian relic goes missing under mysterious circumstances, Jacob knows this is no run-of-the-mill robbery: The relic holds a secret—one that could destroy everything.

Cotton Malone, one-time top operative for the U.S. Justice Department, is enjoying his quiet new life as an antiquarian book dealer in Copenhagen when an unexpected call to action reawakens his hair-trigger instincts—and plunges him back into the cloak-and-dagger world he thought he’d left behind.

America is under attack. Thousands lie dead after simultaneous strikes across the country. The day will come to be known as Bloody Monday. Jason Trapp, codename ‘Hangman’, was a covert operative whose feats became the stuff of legend. He was the tip of the spear—the man his country unleashed when all hope was lost. Six months ago, someone sold him out. The Agency listed him as killed in action. He lost everything—and everyone—he held dear. But Trapp’s not that easy to kill.

During the election of a new Pope in the mid-18th century, famed violinist Antonio Vivaldi learns of a ring of art forgers who are replacing the Vatican’s priceless treasures with expertly-painted fakes. Desperate, the composer hides a message in a special melody, hoping someone, someday, will take down the culprits....

Everything he learned to protect the president, he must use to take out theirs. With an American president distracted by growing tensions in North Korea and Iran, an ominous new threat is emerging in Moscow. A czar is rising in the Kremlin, a Russian president feverishly consolidating power, silencing his opposition, and plotting a brazen and lightning-fast military strike that could rupture the NATO alliance and bring Washington and Moscow to the brink of nuclear war. But in his blind spot is the former U.S. Secret Service agent, Marcus Ryker.

Kennedy, the thirty-fifth president of the United States, is often ranked among Americans’ most well-liked presidents. Yet what most Americans don’t know is that JFK’s historic presidency almost ended before it began—at the hands of a disgruntled sociopathic loner armed with dynamite. On December 11, 1960, shortly after Kennedy’s election and before his inauguration, a retired postal worker named Richard Pavlick waited in his car—a parked Buick—on a quiet street in Palm Beach, Florida.

Van Dorn agent Isaac Bell knows that when the President of the United States asks you to undertake a special mission, the only appropriate answer is, “Right away, sir.” As an official observer, Bell is supposed to avoid action, but that’s like asking a fish to shun water. After battling in the trenches, he finds himself flying beside a group of Allied aviators, unwilling to let them fight alone, even when they are faced with capture. Bell and his compatriots are imprisoned in a medieval castle—one that’s withstood the test of time and countless assaults by conventional weapons in its history.

A Russian arrives in Singapore with a secret to sell. When the Russian is killed and Sam Joseph, the CIA officer dispatched for the meet, goes missing, operational chief Artemis Procter is made a scapegoat for the disaster and run out of the service. Months later, Sam appears at Procter's doorstep with an explosive secret: there is a Russian mole burrowed deep within the highest ranks of the CIA.