"Did he brush his own teeth, or dental plate or whatever it was?"

"Oh, yes, my lord. General Fentiman had an excellent set of teeth for his age."

Wimsey fixed his powerful monocle into his eye, and carried the tooth-brush over to the window. The result of the scrutiny was unsatisfactory. He looked round again.

"Is that his walking-stick?"

"Yes, my lord."

"May I see it?"

Woodward brought it across, carrying it, after the manner of a well-trained servant, by the middle. Lord Peter took it from him in the same manner, suppressing a slight, excited smile. The stick was a heavy malacca, with a thick crutch-handle of polished ivory, suitable for sustaining the feeble steps of old age. The monocle came into play again, and this time its owner gave a chuckle of pleasure.

"I shall want to take a photograph of this stick presently, Woodward. Will you be very careful to see that it is not touched by anybody beforehand?"

"Certainly, my lord."

Wimsey stood the stick carefully in its corner again, and then, as though it had put a new train of ideas into his mind, walked across to the shoeshelf.