“I think that it is not difficult to explain the facts. It came out in evidence that Colonel Moran and young Adair had, between them, won a considerable amount of money. Now, Moran undoubtedly played foul⁠—of that I have long been aware. I believe that on the day of the murder Adair had discovered that Moran was cheating. Very likely he had spoken to him privately, and had threatened to expose him unless he voluntarily resigned his membership of the club, and promised not to play cards again. It is unlikely that a youngster like Adair would at once make a hideous scandal by exposing a well known man so much older than himself. Probably he acted as I suggest. The exclusion from his clubs would mean ruin to Moran, who lived by his ill-gotten card-gains. He therefore murdered Adair, who at the time was endeavouring to work out how much money he should himself return, since he could not profit by his partner’s foul play. He locked the door lest the ladies should surprise him and insist upon knowing what he was doing with these names and coins. Will it pass?”

“I have no doubt that you have hit upon the truth.”