There is a series of twelve books by Alan furst collectively entitled Night Soldiers. They are novels about espionage and intelligence but told from the Russian point of view. Last year I read the first of these and I'm currently on the second. However, it is very convoluted and demands great concentration and I'm finding it a bit of a slog. But , I don't really want to give it up as the first book kept many of its secrets until the end and was really very good. The second is called Dark Star and I wondered whether anyone else had read it and could give me either encouragement or tell me to jack it in.