Gary McAvoy

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....

A curious priest uncovers a mystifying secret - one that leads to a long-buried relic some will do anything to possess. Can he outwit adversaries who will stop at nothing to keep him from revealing an object that challenges history as we know it? Find out....

Inside the jar are several scrolls written by the Essenes 2,000 years earlier, before the Great Jewish Revolt, including one legendary scroll engraved on silver that speaks of what may be the great Lost Treasures of Solomon buried around Jerusalem....

Jesus’ resurrection is a cornerstone of Christian faith. But when a clue surfaces that hints at an alternate account, the ramifications stand to change Christianity forever....

When Father Michael Dominic uncovers a sealed Renaissance letter hidden deep within the Vatican Archives, he awakens a five-hundred-year-old secret buried by Pope Clement VII at the height of the Medici dynasty.

Father Michael Dominic is mere weeks from his wedding to Hana Sinclair when an art restorer dies inside the Vatican's Borgia Apartments, and a sealed niche behind Pinturicchio's frescoes surrenders a five-hundred-year-old secret.

When Vatican archaeologist Marcus Russo uncovers the fabled Nazi Gold Train buried deep within the Owl Mountains of Poland, he expects to find a forgotten trove of looted treasures.

In 1982, Italian financier Roberto Calvi, known as “God’s Banker”, was discovered hanging under London’s Blackfriars Bridge. What wasn’t found was the briefcase he was known to have had with him the night before, reportedly stuffed with incriminating documents, a special key....

For over five hundred years, the Voynich Manuscript has remained one of the greatest unsolved mysteries of the literary world. Its strange botanical drawings, arcane symbols, and cryptic language have defied the best minds of every generation.

When investigative journalist Hana Sinclair uncovers a cryptic reference to an ancient botanical manuscript left to by her late grandfather, she unravels a thread tied to Hildegard von Bingen, a 12th-century abbess, healer, and mystic.

In the heart of the English countryside, a discovery is made that threatens to overturn centuries of Church history. When Father Michael Dominic uncovers a cryptic diary leading to a lost 1st century Gospel, he is thrust into a labyrinth of deceit, murder, and controversy....

Father Jonah Barlow is dead. The respected Jesuit scholar of apocalyptic studies might have died from a fall in his apartment...or was he pushed? All that is known for sure is that the provocative manuscript he was working on is missing....

An old World War II diary filled with cryptic clues launches two friends on an adventure around the world...but their path is fraught with danger and deception...and the treasure they seek can change everything for good - or evil....

Father Michael Dominic, prefect of the Vatican Secret Archives in Rome, is entrusted with the mission of transporting the original 17th century trial documents of Galileo to Loyola Law School in Chicago....

The call comes at dawn. Three words. Come to Pompeii. Marcus Russo has spent his career excavating the past. He has never been afraid of what he might find—until now. The chamber shouldn't exist. Neither should what's painted on its walls. The seven-petaled rose. The geometric cross.

Un secret interdit… Le destin de l'Église en suspens… Un duo de limiers amateurs révélera-t-il une vérité qui pourrait bouleverser le monde chrétien ?

Father Michael Dominic is called to France for an unusual assignment. A 14th-century bishop was found in a crypt buried under the burnt remnants of Notre-Dame—but he’s wearing the ring of a cardinal, and two parchment scrolls had been hidden in his garment sleeve....

This captivating narrative follows Father Michael Dominic, the esteemed Prefect of the Vatican’s Secret Archives, as he uncovers a remarkable artifact lost to time—Leonardo da Vinci’s most ingenious invention, the Celestial Guardian.

Amid the grandeur of the Vatican, the bones of Saint Peter—the Church’s most sacred relics—hold secrets that could reshape its history.

In the shadowed depths of the Vatican’s Secret Archives, archaeologist Marcus Russo, Father Michael Dominic, and investigative journalist Hana Sinclair uncover a chilling artifact—a centuries-old music box intricately crafted and bound with symbols of forgotten rites of alchemy.