Gary McAvoy Books in Order

Coauthored with Jane Goodall and Gail Hudson, this guide looks at how food choices affect animals, people, and the planet. It turns big environmental questions into practical everyday decisions about eating more mindfully.

Drawing on Harold Nye's journals and case files, this true crime book reexamines the 1959 Clutter family murders. Gary McAvoy argues that the story behind *In Cold Blood* may be more complicated than readers were told.

In the Vatican Secret Archives, Father Michael Dominic discovers a papyrus attributed to Mary Magdalene that could shake Christian belief. He and reporter Hana Sinclair become targets as they chase the truth through Church secrets and wartime shadows.

Father Michael Dominic and Hana Sinclair decode a medieval puzzle that leads to a sacred reliquary hidden in southern France. Ruthless collectors, old enemies, and black market interests turn the hunt into a race for survival.

An old Nazi diary points Father Michael Dominic and Hana Sinclair toward the legendary Veil of Veronica. Their search crosses Jerusalem, Rome, France, and Buenos Aires as rival hunters close in on a relic with enormous symbolic power.

A message hidden in Vivaldi's music leads Father Michael Dominic to Venice and a centuries-old art forgery ring tied to the Vatican. With Hana Sinclair and a music cryptologist beside him, he races the Camorra to crack the code first.

After a body and hidden parchments are found beneath Notre-Dame, Father Michael Dominic is drawn into a French political crisis and a hunt for secrets buried since the Avignon papacy. The case quickly becomes bigger than archaeology or Church history alone.

A lost briefcase tied to banker Roberto Calvi surfaces in the Vatican Archives, pulling Father Michael Dominic into a fight over blackmail files, secret societies, and a looming papal conclave. The deeper he digs, the more dangerous the conspiracy becomes.

After a Jesuit scholar dies, Father Michael Dominic helps investigate a missing manuscript about prophecy and the Third Secret of Fatima. As dire predictions seem to come true, the case widens into a race across Europe and the Middle East.

A cryptic diary and a lost gospel send Father Michael Dominic and Hana Sinclair into a murder case in England and a battle over the legend of Pope Joan. Their search forces buried Church history into the open.

Father Michael Dominic escorts Galileo's original trial papers to Chicago for a modern mock trial, then priceless exhibits disappear. What starts as a scholarly event becomes a theft case tangled with Vatican politics and rival agendas.

Two boys find ancient scrolls near Qumran, including one that could upend Christian history. Father Michael Dominic races from Jerusalem to Cairo to keep the discovery away from sects, brokers, and opportunists who want it for themselves.

Clues hidden around Saint Peter's bones lead Father Michael Dominic and archaeologist Marcus Russo toward a forgotten figure in early Church history. Their search draws the attention of a man who sees holy relics as a route to power.

Father Michael Dominic uncovers a machine designed by Leonardo da Vinci that seems able to predict a catastrophic asteroid strike. Soon he is caught between scientific urgency, Vatican power struggles, and the fear that the device can do far more than predict.

Vatican archaeologist Marcus Russo finds more than treasure when he uncovers the Nazi Gold Train and a codex tied to Operation Eisenkreuz. The discovery opens a chase through Europe against a postwar extremist network.

Marcus Russo, Father Michael Dominic, and Hana Sinclair investigate a sinister music box linked to an alchemical composer and a lost melody. As strange phenomena spread, the hunt becomes a race to stop a ritual disguised as music.

When Hana Sinclair finds traces of a lost manuscript by Hildegard of Bingen, she and Father Michael Dominic uncover a biotech plot built on suppressing cures. The chase turns personal as history, medicine, and profit collide.

A sealed Renaissance letter sends Father Michael Dominic and Hana Sinclair into a Medici-era secret the Vatican once tried to erase. Their hunt uncovers forbidden manuscripts and dangerous questions about who gets remembered, and who gets silenced.

New fragments connected to the Voynich Manuscript pull Father Michael Dominic and Hana Sinclair into another European chase. What looks like a literary puzzle becomes a deadly fight over knowledge someone has spent centuries trying to bury.

An impossible chamber in Pompeii suggests the roots of Rosicrucianism are not what history claims. Marcus Russo follows the trail from buried ruins to the Vatican and beyond, pursued by a group determined to protect the lie.