Gabriel Allon is an art restorer, and a wonderful artist in his own right, but that is not his real occupation. Gabriel Allon is an Israeli spy for "The Office", the nickname given to their intelligence agency. When a Russian defector named Gregori Bulganov, who had saved Gabriel's life just 6 months earlier, went missing, Gabriel knows that he has to do something about it. Unfortunately, this means getting involved with Ivan Kharkov, a very wealthy and ruthless Russian arms dealer.
I thought that this thriller was interesting and quite well done. It isn't necessary to read the earlier books in the series to enjoy this one but it might be worth it. The was one f-word but the rest of it was rather clean except for violence. I don't know how clean the earlier books are but, if you go by this one they could be fairly clean. Rated R for that one word.