A good way to kill the suspense in your whodunit is to make your antagonist predictable and cartoonish. (Alyssa Mackay)

Are we in a new Golden Age of the whodunit? (Telegraph)

While Agatha Christie is still the first to spring to mind when thinking of the ultimate ‘whodunit’ books, detectives, murderers and victims have changed a lot since then; the breadth of crime, thrillers, detective and psychological novels out there, keeping us on tenterhooks until the last few pages, is vast. (WH Smith)