Agatha Christie

Dumb Witness is a detective fiction novel by British writer Agatha Christie, first published in the UK by the Collins Crime Club on 5 July 1937 and in the US by Dodd, Mead and Company later in the same year under the title of Poirot Loses a Client. The UK edition retailed at seven shillings and sixpence and the US …

A dentist lies murdered at his Harley Street practice...The dentist was found with a blackened hole below his right temple. A pistol lay on the floor near his outflung right hand. Later, one of his patients was found dead from a lethal dose of local anaesthetic. A clear case of murder and suicide. But why would a …