The Content Reader

I am almost ashamed to say that this is my first book by Graham Greene. A classic spy thriller in the same fashion as John Le Carré. The set-up is classic:  a small unit in MI6, a leak and a search for the traitor. Our man, Maurice Castle, is close to retirement. His only post abroad was in South Africa some years back.  Now he is back in London. During his years in South Africa, a local girl was working as one of his sources. He fell in love and he managed, with some difficulty, to get her and her son out of there. They married and are living a quiet life in a suburb to London. Living exactly like everybody else in the street, not to stick out, always to hide their real business. Their whole life is an artificial one, but at least they have each other. The leak has been connected to the African section where Castle works. He jokes about it with his colleague Davis, and they don't take it too seriously to start with.  Things are moving very slowly forwards. In paralle...