Sister Ottavia Salina, a Vatican archivist, along with an archaeologist and a captain in the Swiss Guard, investigates international relic thefts, faces tests based on the seven deadly sins, and searches for the True Cross.

When her father dies under suspicious circumstances, Rachel Cutler finds everything she loves threatened by the rival quests of two art collectors who seek one of the world’s greatest treasures, lost after the Second World War.

Cotton Malone, a former covert U.S. Justice Department operative, and his ex-supervisor Stephanie Nelle, follow a labyrinthine trail of danger, treachery, high-level intrigue, and overwhelming ambition across Europe on a quest that leads them to the enigmatic secrets of the Knights Templar.

Trying to decipher an ancient text that weaves a mathematical labyrinth within a love story, two researchers obtain a diary that may contain the key to the code, but when a fellow researcher is killed, they realize that the book contains a dangerous secret.

Evidence of a female messiah executed by the Church in the fourth century has been stolen from its safe hiding place in the Vatican, and now all hell is breaking loose in the modern world as a result.

Sent to oversee the completion of Da Vinci’s “The Last Supper,” Dominican inquisitor Fray Agustin Leyre investigates the artist’s omission of key elements and use of symbolic imagery, which suggests that there is a coded message in the painting.

In the wake of a Munich writer’s assassination, a Mossad agent and a Vatican priest embark on dangerous journeys that reveal long-buried secrets affecting the fates of millions of people.

Sean Tallow desperately tries to solve the riddle surrounding School of Night, an enigmatic group of Elizabethans who clustered around Sir Walter Raleigh.

After joining the Order of the Knights Templar, Will Campbell is assigned to recover a heretical text stolen from the group’s vaults, unaware that the book hides clues to a plot by secret group within the order.

Journalist Maureen Pascal discovers that she is destined to play a key role in an international quest to gain control of a priceless series of scrolls, written in the first century by Mary Magdalene and hidden in the wilds of the French Pyrenees.

Gemma Bastian, the daughter of a renowned late archaeologist, raises troubling questions about her father’s death, which occurred during his attempt to recover and make public the lost Gnostic Gospels.

Alice, a volunteer at an archaeological dig, becomes a target after discovering a pair of crumbling skeletons in the Pyrenees mountains, while eight hundred years in the past, Alaèis, the daughter of a crusader, must safeguard the location of the Holy Grail.

A modern-day priest uncovers a sixth-century conspiracy that threatens to re-awaken in the present, and his investigation carries him to Croatia where he will confront the consequences of an eight-year-old affair.

As Lucas Corso investigates the authenticity of a manuscript by Alexander Dumas — received from a man later found hanged — he becomes embroiled in a search for a rare book of satanic lore, pursued by a sinister stalker and a mysterious woman.

Private investigator Danny Cray is hired to discover who is behind a clever scheme to destroy the reputation of a notorious billionaire — an assignment that takes him around the world and unexpectedly hurls him into a sinister world where nothing is what it seems.

When a frustrated philosopher uncovers what he believes is a lost painting by Bruegel in a boorish neighbor’s basement, he embarks on a quest to separate the work from its owner.

Draws on the Bible and secular historical research to present a fictional portrait of Mary Magdalene as she becomes part of Jesus’s disciple circle and comes into a realization of her faith.

An investment banker is sent by his firm to organize a collection of rare books for a mysterious, important client and realizes that there may be a medieval codex hidden among the volumes that surprisingly parallels a computer game’s addictive virtual reality world.

When the opening gala of a Vatican exhibit attended by archaeologist Tess Chaykin is stormed by four horsemen dressed as Templar Knights who steal an artifact, FBI anti-terrorist specialist Sean Reilly and Tess team up for an investigation.

The discovery of an original manuscript of Dante’s “Inferno” in the Vatican archives finds writer Nick Tosches heading for Rome to authenticate the find.