"A Lily of the Field" is the first John Lawton book I've read. In fact, despite being a prolific reader of British WW1 and WW2 era mysteries, I had never heard of him or his books. The problem with stepping into a series in mid-stream, as I have done here, is that I feel I am not as knowledgeable about Lawton's on-going characters as I would have been had I read his backlist.
"Lily" starts out as an espionage story and changes midway through to a police procedural. Not that, in theory, there's anything wrong with writing like that, but it does rather change the pace and some questions and characters introduced in the first part of the book are not answered in the second. It feels somewhat "incomplete". The story(ies) are both quite good and Lawton gives an excellent description of post-war London and Paris, as well as pre-war Vienna, and war-time Los Alamos and New York, and Auchwitz. I just couldn't stop thinking, as I finished this book, that there was a lot left out that should have been included, in terms of plot and characters.
I have ordered several of Lawton's backlist of his Inspector Troy series so I have some idea of the Troy family and their position in London society and the back story of some of the other characters in "A Lily of the Field". As a stand-alone novel, as I read it, I thought it was a four-star effort. Maybe, after reading some of Lawton's previous work, and seeing where "Lily" fits in, I'll come back and change this to a five-star rating.
I did enjoy this book, though, and can heartily recommend it.