Mr. Keen, Tracer of Lost Persons - The Yellow Talon Murder Case

Philip Carter and his fiancé, Eloise Gray, pay a visit to Mr. Keen's office, hoping that he can help them. Philip says "Mr. Keen, could you possibly give us a few minutes of your time, sir? I'd be very grateful". Mr. Keen says "Certainly, just what is it you want to see me about?" Philip says "A murder, Mr. Keen. My sister Helen was killed last night in the family estate. Mike Clancy, Mr. Keen's partner, says "We didn't read anything about it in the newspapers". Philip says "The family estate is fifty miles from here, on the Hudson River. It will probably be reported in the newspapers later today". Mr. Keen says "Philip, you and Miss Gray please have a seat and give me all the details". Philip says "My sister Helen was found in the study about midnight by our Uncle Jonathan. He's been living with us ever since the death of our parents years ago. I'll never forget last night as long as I live". Mr. Keen says "How was Helen Carter killed?" Philip says "That was the most horrible thing of all, Mr. Keen. My sister had been strangled and her throat was terribly lacerated. It was as if some gigantic bird with sharp talons or claws had attacked her".