“What are you getting at? Do you⁠—do you mean to insinuate that I⁠—I killed her?”

He laughed suddenly.

“I mustn’t lose my temper; it’s too palpably absurd. Why, if I killed her I should have had no need to steal her jewels, would I?”

“That is true,” murmured Poirot, with a rather crestfallen air. “I did not think of that.”

“If ever there were a clear case of murder and robbery this is it,” said Derek Kettering. “Poor Ruth, it was those damned rubies did for her. It must have got about she had them with her. There has been murder done for those same stones before now, I believe.”

Poirot sat up suddenly in his chair. A very faint green light glowed in his eyes. He looked extraordinarily like a sleek, well-fed cat.