The Secret Adversary

Book number 11 for the year is an Agatha Christie that I'd never heard of before.  After looking it up, I found that it was her second book published.  I enjoyed it immensely.  It takes place at the end of WW1 and the main characters are Tommy and Tuppence Beresford ( not married as yet in this story).  I noticed a lot more British slang in this book then in her others.  I don't know if it was because of the time period in which she wrote it, or because it was those characters instead of the more familiar ones of Miss Marple and Poirot.  Still it had some major twists and turns...especially at the end.  I fell right into her trap...I love that!