Agatha Christie's 'Hercule Poirot Series' books are always good. (Actually most of the Agatha Christie's crime series are good.) Bear in mind that most of those are set in the 1920s-1930s period.
Agatha Christie's 'Hercule Poirot Series' books are always good. (Actually most of the Agatha Christie's crime series are good.) Bear in mind that most of those are set in the 1920s-1930s period.