Two clandestine syndicates want control over the Church’s power … and the tools to do it are hiding deep in the Vatican Secret Archives. But first they have to deal with a meddling priest who could ruin their plans.

Father Michael Dominic is intrigued when a long-lost briefcase is discovered in the Vatican Secret Archives. Inside, he finds incriminating documents, a special key, and a computer disk filled with codes, which together unlock a piece of the Catholic institution’s troubled past. Suspicious they could influence a special conclave to elect a new pope, Dominic must discover what the documents reveal before it’s too late.

But the two menacing institutions close in on Dominic, intent on taking the key and cipher for their own sinister ends. Father Michael, his young assistant, and a feisty young nun have to work together to decode the information before anyone else. Can they solve the puzzle in time, or will their enemies obstruct centuries of Church history?

If you loved The Magdalene Chronicles, or books by Daniel Silva or James Rollins, you'll devour this blistering thriller!

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Discover what readers are saying...

“McAvoy excels at keeping the story moving at a gallop. International thriller fans will relish the political machinations, nonstop action and the delightfully evil secret societies.”— Publishers Weekly / BookLife

“Another winner by Gary McAvoy that will have those who love a good thriller on the edge of their seats.” — Matt Pechey, Reedsy Discovery

“This is a series that gains momentum with each novel and never seems to lose its way.” — Matt Pechey, Reedsy Discovery

“McAvoy is an intelligent writer and a stickler for details, from weapons to Vatican finances, and that makes reading his novels both entertaining and informative.” — Joan Nienhuis, Professional Book Reviewer

“I almost feel the need to buckle in before picking up one these books!” — Kymm Cummins