Golden Deer Classics publishes the greatest works of history's greatest authors and collects them to make it easy and affordable for readers to have them all at the push of a button. All of our collections include a linked table of contents. Agatha Christie was a British author of crime fiction. Christie's career spanned over 50 years and featured over 60 novels. Christie's book The Mysterious Affairs at Styles, was the first to feature the legendary character Hercule Poirot. This collection includes the following: NOVELS: The Mysterious Affair at Styles The Secret Adversary