A Historical Religious Murder Thriller of Spiritualism and Vengeance
Cal Donovan Vatican Conspiracy Thrillers
Lascaux Media
June 2026
On Sale: May 26, 2026
349 pages ISBN: 1971648094 EAN: 9781971648095 Kindle: B0GRHQ7BN9 Paperback / e-Book Add to Wish List
Three nuns are murdered in the attic of a Boston convent. There are no witnesses. No shell casings.
The only things missing are their rosaries.
Days later, a Boston medium claims her spirit guide has identified the killer: a broken priest with an antique revolver. A single newspaper column turns that claim into a city-wide witch hunt.
Harvard “pope whisperer” Cal Donovan and former Vatican power broker Elisabetta Celestino step into the city’s séance rooms to test the story.
What they uncover is a trail of antique ballistics, buried secrets, and a generations-old vendetta that reaches back to Arthur Conan Doyle and the birth of modern Spiritualism.
To save an innocent man, Cal and Elisabetta must decide whether they are chasing a brilliant fraud who hides behind the dead, or facing something far more unsettling: the dead really are answering back.
From international bestselling author Glenn Cooper, Covenant of the Dead is a standalone Cal Donovan thriller blending historical mystery, murder, and religious intrigue for readers of Dan Brown and Steve Berry.
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