Caroline: There's a moment in Agatha Christie's 1964 novel A Caribbean Mystery that I think about a lot. Miss Marple, generously sent on a luxury winter holiday to the island of St Honoré by her wealthy novelist nephew, has encountered what she believes to be a
[Train sound effect] Caroline: It's an iconic mystery setting, almost to the point of cliche, reproduced in lovingly nostalgic detail in films and TV adaptations. The panelled walls of polished wood, deep carpets, comfortable seats covered in plush velvet, and attendants in sharp uniforms, ready to cater to
Caroline: Even the best detectives get stuck during their cases. The alibis are overlapping, the witnesses are contradicting themselves, and the medical evidence isn't making anything clearer. As readers of whodunnits, as confused as our sleuths, it's hard not to think about how much easier everything
