Gary McAvoy

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.

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 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.

Truman Capote’s best-selling book In Cold Blood has captivated worldwide audiences for over 50 years. It is a gripping story about the consequences of a trivial robbery gone terribly wrong in a remote village of western Kansas....

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....

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....

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.

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.

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....

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....

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....

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....

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....

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 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....

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.

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....