My mostly-favorite Israeli assassin/spy series, but this one is mostly about... the pope? I learned some things about Pontius Pilate and about the Vatican (and their library) but it was maybe a bit too much time with Jesus for me. The loose idea: someone kills the pope and there is a shadowy conspiracy to put in a new pope and Allon is called in to help out. It was a good read with a memorable storyline but at the same time you wind up with a ton of sympathy for his long-suffering wife (also a spy!) and their kids.