Unnatural Death

It might seem that there is nothing suspicious about the death of the fabulously wealthy lady Agatha Dawson: she was quite advanced in age and suffered from a severe incurable illness. So what alarmed the ordinary provincial doctor, who resolutely refused to sign the death certificate? Peter Wimsey decides to uncover the circumstances of the case and discovers that Miss Dawson is only the first of the murder victims, elaborately staged to resemble natural death...