The bullet had been extracted and was proved to have been fired from a revolver identical with the one held by the police. Furthermore, Mr. Havering’s movements on the night in question had been checked and verified, and it was proved beyond doubt that he had actually arrived in London by the train in question. And, thirdly, a sensational development had occurred. A city gentleman, living at Ealing, on crossing Haven Green to get to the District Railway Station that morning, had observed a brown-paper parcel stuck between the railings. Opening it, he found that it contained a revolver. He handed the parcel over to the local police station, and before night it was proved to be the one we were in search of, the fellow to that given us by Mrs. Havering. One bullet had been fired from it.

All this I added to my report. A wire from Poirot arrived whilst I was at breakfast the following morning: