From Coachwhip Books:

Death Comes to Perigord is a detective story concerned with the disappearance and subsequent death of a man while under the care of a young doctor in the absence of the usual medical attendant. The story is set in the Channel Islands, among a mixed population of French and English, but the interest first lies in the discovery by the young doctor of certain peculiarities in the dead body which flatly contradict each other. And the doubts then raised are reinforced by the doctor’s discovery of a small peculiarity about the dead man’s watch. Subsequent clues include a ship’s figurehead, a perfumed handkerchief, a knife blade, a barking dog, and a tennis ball that had been gilded, and these apparently disconnected objects Detective McNab, with the help of Dr. Dunn, builds up into a connected and coherent sequence which, step by step, unravels the part played by each article in the murder and leads to the identification of the real criminal.

Death Comes to Perigord was published in 1931.