In "The Observer"'s issue of 5 January 1936, "Torquemada" (Edward Powys Mathers) wrote, "Ingenuity ... is a mild term for Mrs Christie's gift. In "The A.B.C. Murders", rightly chosen by the club as its book of the month, she has quite altered her method of attack upon the reader, and yet the truth behind this fantastic series of killings is as fairly elusive as any previous truth which Poirot has had to capture for us. The reader adopts two quite different mental attitudes as he reads. At first, and for a great many pages, he is asking himself: "Is Agatha Christie going to let me down? Does she think she can give us this kind of tale as a detective story and get away with it?" Then the conviction comes to him that he has been wronging the authoress, and that he alone is beginning to see through her artifice. In the last chapter he finds, because brilliant circus work with a troop of red horses and one dark herring has diverted his attention from a calm consideration of motive, he has not been wronging, but merely wrong. It is noticeable, by the way, that characters break off at intervals to tell us that we have to do with "a homicidal murderer". We are ready to take this for granted until Mrs Christie (I wouldn't put it past her) gives us one who isn't."