As usual, Gabriel Allon is dragged out of retirement (or in this case, restoration work) to help the Israeli intelligence as well as the Pope. With laundered money from stolen and illegal antiquities going into Hezbollah's coffers, and the Vatican's bank an unknowing partner in the procedures, Gabriel is asked to find the link from the Vatican to the terrorists and stop the potential scandal. Of course, this evolves delving into a global criminal enterprise which has tentacles far more reaching than anyone could imagine. Suspenseful action and Gabriel's stone like stoical nature as usual save the day. I always feel like I pick up something new about world politics and terrorism from Silva's novels and this is no exception.