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.

When several people are burned to death during the theft of a religious artifact, Gray Pierce, a new member of the U.S. SIGMA force, pursues a clandestine fraternity of alchemists who would use the artifact to establish a new world order.

Former secret agent Cotton Malone and Stephanie Nelle, a U.S. Justice Department prosecutor, must solve the mystery of fourteenth-century Templar riches and secrets before Raymond de Roquefort and his murderous allies prevail. 

About to embark on a business trip to Algeria, Catherine Velis meets a mysterious man who offers her an enormous sum of money if she will find the pieces of an old chess service reputed to be in Algeria.

Joe Lassiter takes a leave of absence from his high-tech investigation agency to search for the murderer of his only sister and her son.

In 2005, Alice Tanner stumbles into a hidden cave while on an archeological dig in southwest France. Her discovery—two skeletons and a labyrinth pattern engraved on the wall and on a ring—triggers visions of the past and propels her into a dangerous race against those who want the mystery of the cave for themselves. (Book Description courtesy of Publisher's Weekly.)

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.

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.

In December 1999, archaeologist Catherine Alexander unearths six ancient papyrus scrolls that reveal secrets that the worlds' governments would give anything to possess, but the seventh scroll is missing and Catherine races against time--and Armageddon--to find the parchment.

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.

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 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.

When master thief Michael St. Pierre steals two priceless antique keys--which supposedly protect the secret of salvation--from Vatican vaults, he unwittingly sets in motion a deadly plot that brings him face to face with an insidious enemy and sends him running for his life. 

Hired to appraise a four-hundred-year-old journal, supposedly by the cabin boy aboard Sir Walter Raleigh's expedition, antiquarian bookseller Harry Blake soon finds that the enigmatic volume is much more, when his client is murdered.

When Detective Nic Costa arrives to investigate the killing of a woman whose body is found on the floor of the Pantheon, her body brutally carved, he is caught in the middle of an ambush that costs him his only witness and follows a deadly trail that leads to more gruesome murders, high-level government intrigue, a woman's search for the truth, a shocking conspiracy, and a madman.

After his father's death in a mysterious explosion, Braverman "Bravo" Shaw discovers that the late Dexter Shaw had been a high-ranking member of the Order of Gnostic Observatines, a secret sect tasked with preserving an ancient cache of documents that could reshape all of Christianity and has become the target of the Knights of St. Clement, who will stop at nothing to obtain the treasure.

When her cousin is killed, Ariel Behn inherits a mysterious cache of manuscripts from the first century A.D. that, when deciphered, could give her the power to control the world.

When a young art expert discovers a murder hidden in a valuable fifteenth-century Flemish painting, she must overcome some unscrupulous twentieth-century characters to uncover the identity of the killer.