I'm not sure I have an entire post's worth of things to say about The Mysterious Affair at Styles. It's Agatha Christie's first novel, but I don't know that I've read enough of her to compare it to her later works in any meaningful way. I've watched the entirety of the Poirot TV series, but I believe this is only the third Poirot book I've read (Murder on the Orient Express and The Murder of Roger Ackroyd being the others). Captain Hastings, a character familiar to me from the TV show, doesn't appear in either of the Poirot books I'd read, so this was my first introduction to him as the Poirot narrator. Christie is very clever in making the reader aware of Hastings' shortcomings as a detective even as he is the one telling us the story. I haven't read Arthur Conan Doyle, but I imagine Christie was inspired by his Dr. Watson's function as a narrator and the somewhat thick sidekick to a brilliant mind.
I read The Mysterious Affair at Styles in the space of an afternoon and now I must decide if I go right back to Breasts and Eggs or start something new. Maybe short stories are the answer for this moment in my life.
