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....

Jesuit Priest Michael Dominic’s assignment to the Vatican’s legendary Secret Archives results in his discovery of a hidden papyrus: the unpublished writings of Mary Magdalene - a lost record buried in Rome’s deepest recesses. The forgotten relic’s heretical revelation threatens the Vatican’s very legitimacy, and pits Michael against ruthless and powerful enemies. Desperate, he reaches out to Hana Sinclair, an investigative reporter with a record of tackling contentious subjects.

Harry Fox hunts artifacts for the Italian mob. When a forgotten manuscript suggests Great Britain's most famous king may not be fiction, Harry plunges headlong on a dangerous path to uncover the truth. Little does he know a shadowy alliance with ties to three of mankind's most powerful organizations follows his every move, desperate to stop him before he can uncover the truth behind the legend. Surrounded by enemies, Harry barrels across the globe and discovers the myth of King Arthur is far more real than anyone ever imagined. Can Harry survive to reveal the true story?

Former FBI profiler Adrian West is in Rome for a history conference when she learns that her friend and colleague, Dr. Sebastian Rossi, has been abducted.

Luke Daniels is in London, between assignments with the Magellan Billet, when he receives a frantic call from an old friend. Jillian Stein is in trouble. She made a mistake and now her life may be in danger. She needs Luke’s help. Immediately. Racing to Belgium Luke quickly finds that she was right. A shadow team of highly-trained operatives are there on the hunt. Intervening, he finds himself embroiled in a war between two determined sides—one seeking the truth, the other trying to escape the past—a war that has already claimed one life and is about to claim more.

Antiquarian bookseller Robin Jessop has acquired a strange medieval volume. What appears to be a book is a cleverly disguised safe, in which she finds a single rolled parchment, written in code. For encryption expert David Mallory, the text is impenetrable. Until an invaluable clue opens the door to a conspiracy, stretching back seven centuries. Now Jessop and Mallory find themselves on a desperate hunt that could change history, topple an empire and bury them both alive. Because soon they’re not only the hunters. They’re also the hunted.

In 2004, as Pope John Paul II's reign enters its twilight, a mysterious exhibit is under construction at the Vatican Museums. A week before it is scheduled to open, its curator is murdered at a clandestine meeting on the outskirts of Rome. The same night a violent break-in rocks the home of the curator's research partner, Father Alex Andreou, a Greek Catholic priest who lives inside the Vatican with his five-year-old son.

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.

Nora Kelly, a young archaeologist in Santa Fe, receives a letter written 16 years ago, yet mysteriously mailed only recently. In it her father, long believed dead, hints at a fantastic discovery that will make him famous and rich - the lost city of an ancient civilization that suddenly vanished a thousand years ago. Now Nora is leading an expedition into a harsh, remote corner of Utah's canyon country, but what she unearths will be the newest of horrors.

The Ghent Altarpiece is the most violated work of art in the world. Thirteen times it has been vandalized, dismantled, or stolen. Why? What secrets does it hold? Enter UNESCO investigator, Nicholas Lee, who works for the United Nations’ Cultural Liaison and Investigative Office (CLIO). Nick’s job is to protect the world’s cultural artifacts—anything and everything from countless lesser-known objects to national treasures. When Nick travels to Belgium for a visit with a woman from his past, he unwittingly stumbles on the trail of a legendary panel from the Ghent Altarpiece.

June 1933. Independent, young Kitty Underhay has been left in charge of her family’s hotel, The Dolphin, on the tranquil English coast. But when several rooms are broken into and searched, including Kitty’s own, she quickly realizes that something out of the ordinary is afoot at the hotel. Soon, rumors are flying in the cozy town that someone is on the hunt for a stolen ruby. A ruby that Kitty’s mother may well have possessed when she herself went missing during the Great War.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

England, 1925. After years shut away from the world, former detective Lord Edgington of Cranley Hall plans a grand ball to celebrate his seventy-fifth birthday. But when someone starts bumping off members of his scheming family, the old man enlists his teenage grandson to help find the killer, before one of them is next.

In the summer of 1601, Galileo Galilei made a startling discovery in the mountains of Eastern Italy that, if made public, could shatter faith in religion, bring down governments, and lead to worldwide turmoil. For more than 400 years, the secret has been guarded by a small group of incredibly powerful people, willing to do everything in their power to keep these discoveries from being made.

Summoned to Rome by an old friend, a Jesuit scholar finds himself using a code discovered in the Bible to unearth an ancient, hidden chapel in the catacombs under the city. When a rogue force of Vatican security officials are alerted to his discovery, the priest flees to the Holy Land with a clue...a clue that will lead him and a team of Israeli Christians to a much larger secret in the middle of the barren Negev Desert.