Unnatural Death by Dorothy L Sayers

"I who am given to novel-reading, how often have I gone out with the doctor when the stranger has summoned him to visit the unknown patient in the lonely house. This Strange Adventure may lead, in a later chapter, to the revealing of a mysterious crime. " The Londoner

"I think," said Mr. Trigg, "that it was on the 15th, or 16th June, 1925, that a lady called to ask almost exactly the same question that you have done -- only that she represented herself as inquiring on behalf of a friend whose name she did not mention. Yes -- I think I can describe her pretty well. She was tall and handsome, with a very clear skin, dark hair and blue eyes -- an attractive girl. I remember that she had very fine brows, rather straight, and not much colour in her face, and she was dressed in something summery but very neat. I should think it would be called an embroidered linen dress -- I am not an expert on those things -- and a shady white hat of panama straw."