We borrowed a recorded version of this book from the library for our drive to Idaho. I’d never read any Agatha Christie books, but they are excellent for driving. The intricate plot requires close attention, especially in audio format. I probably would have done a lot of re-reading in a printed book, but in the end I think Agatha would have succeeded in keeping me clueless regardless. The story is nearly entirely plot-driven, which I don’t usually like, but again it’s good for driving. This seemed like the perfect way to gain an appreciation for an author I wouldn’t have read otherwise.