 Nevertheless, given the choice between setting free a murderer and expediently allowing an unpleasant but innocent man go to the gallows, Poirot (with marked reluctance) saves Carter.Maurice Willson Disher in "The Times Literary Supplement" of 9 November 1940 was not impressed with either the novel or the genre when he said in the article titled "Murder of a Dentist", "Possibly the reader who wants to be puzzled may be the best judge of a detective story.If so Agatha Christie wins another prize, for her new novel should satisfy his demands.