Understanding of an incident which had perplexed him came to Jimmy.

"Was it you who put that high-ball in my room? Was it doped?"

"Didn't you know?"

"Well," said Jimmy, "I never knew before that virtue got its reward so darned quick in this world. I rejected that high-ball not because I suspected it but out of pure goodness, because I had made up my mind that I was through with all that sort of thing."

His companion laughed. If Jimmy had had a more intimate acquaintance with the resourceful individual whom the "boys" called Gentleman Jack, he would have been disquieted by that laugh. It was an axiom among those who knew him well, that when Gentleman Jack chuckled in the reflective way, he generally had something unpleasant up his sleeve.

"It's your lucky night," said Gentleman Jack.

"It looks like it."

"Well, it isn't over yet."

"Very nearly. You had better go and put that test-tube back in what is left of the safe now. Did you think I had forgotten it?"

"What test-tube?"