I could easily see this book in movie form---and the story of the Black Madonna of Czestochowa in Poland, which he centers the story around, is even more of a draw since it's an actual painting (available to view on Wikipedia). Reading about history interwoven into fiction is always appealing to me, and I'll look forward to follow-up books in this series.
(this book was provided free for review by Glass Road PR)
(this book was provided free for review by Glass Road PR)