Unnatural Death
Dorothy L. Sayers
 Overhearing a conversation in a restaurant between Wimsey and his friend Parker, a doctor tells the two of a death that affected his career. A terminal cancer patient, old and wealthy, died unexpectedly early; the doctor provoked outrage when he queried the cause, and local opinion forced him eventually to move away. Wimsey is moved to investigate. Wimsey discovers that the patient's great-niece - popular locally - had nursed her through her illness and was the intended heiress. The patient had a horror of contemplating death, however, and refused to listen to entreaties that she must make a will to be sure that her fortune would pass to her great-niece as she wished. A change in the law was imminent and meant that a great-niece would no longer inherit automatically and the estate would probably pass to the Crown. Killing her great-aunt before the legislation came in allowed the niece to secure the fortune intended for her. When Wimsey begins investigating, using the recurring character Miss Climpson as his intelligence agent, the great-niece is provoked into covering her trail. She kills a former servant, fakes a kidnap-murder and tries to frame a distant relative with an interest in the Dawson estate, and almost kills Miss Climpson. Lord Peter exposes the great-niece's motive and methods, including the false identity she has established in London, and she is eventually arrested and imprisoned on remand, where she commits suicide. The doctor from whom Lord Peter originally heard the anecdote has moved on and is not grateful to be vindicated.