I found this book by accident,as it does not seem to be published in the u.k.
I really enjoyed reading this book and have read the next two in sequence,it's a good idea to read them in sequence,as it explains a number of things that are pertinent to the stories.
These stories are not Hollywood and are very slow-paced,but very intriginuing and you get the clues with the character,so you sem to be in the plot with them.
A small point:the stories take place just after the first world war and the author has the characters drinking a lot of coffee,which was almost unheard of in English life at the time,except among the aristocracy,and a number of characters take ;;cream ::with their tea,whereas the English only take:::milk::.
Having said that,the author must know England and English history,very well.They evoke the period very well and there description of English country villages and countryside is exceedingly accurate.
These books,so far,are a really good read and intend reading the whole series.