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Josh Duffy
“Nobody crafts a blockbuster thriller like Mark Greaney!”
– Brad Thor
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Sentinel
A Josh Duffy Novel
ON SALE NOW!
An African coup may force Josh Duffy to choose between his mission and his family in this intense thriller from the #1 New York Times bestselling author of The Gray Man series.
Explore Book
The Josh Duffy Novels
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Want to read the first chapter of SENTINEL?
It releases in June, but subscribers can read the first chapter now, for free by signing up for Mark’s monthly newsletter.