“The proceeds, then, of this jewel-robbery, if it comes off,” he said, “will go to establish the Jackson home on a firm footing? Am I right in thinking that?”

“Absolutely.”

“There is no danger—you will pardon the suggestion—of you clinging like glue to the swag and using it to maintain yourself in the position to which you are accustomed?”

“Absolutely not. Uncle Joe is giving me—er—giving me a bit for myself. Just a small bit, you understand. This is the scheme. You sneak the necklace and hand it over to me. I push the necklace over to Uncle Joe, who hides it somewhere for the moment. There is the dickens of a fuss, and Uncle Joe comes out strong by telling Aunt Constance that he’ll buy her another necklace, just as good. Then he takes the stones out of the necklace, has them reset, and gives them to Aunt Constance. Looks like a new necklace, if you see what I mean. Then he draws a cheque for twenty thousand quid, which Aunt Constance naturally thinks is for the new necklace, and he shoves the money somewhere as a little private account. He gives Phyllis her money, and everybody’s happy. Aunt Constance has got her necklace, Phyllis has got her money, and all that’s happened is that Aunt Constance’s and Uncle Joe’s combined bank balance has had a bit of a hole knocked in it. See?”

“I see. It is a little difficult to follow all the necklaces. I seemed to count about seventeen of them while you were talking, but I suppose I was wrong. Yes, I see, Comrade Threepwood, and I may say at once that you can rely on my co-operation.”

“You’ll do it?”

“I will.”

“Of course,” said Freddie awkwardly, “I’ll see that you get a bit all right. I mean . . .”

Psmith waved his hand deprecatingly.

“My dear Comrade Threepwood, let us not become sordid on this glad occasion. As far as I am concerned, there will be no charge.”