“So she got clear away?” remarked the man known as Stent. “I always said she was one of the smartest women in England. How did she outwit the detective?”

Farloe smiled. “It was beautifully simple,” he replied. “She ’phoned me up in the morning to say she was starting in a few moments, and that she was sure this fellow would hang on to her as long as he could. She asked me if I could suggest any way of outwitting him. At the moment I couldn’t.”

Stent darted a glance at his companion which was not exactly one of appreciation. “Your sister is quicker at that sort of thing than you,” he said briefly.

Farloe did not appear to notice the slight conveyed in the words and tone, and went on in his smooth voice:

“I expect so. Anyway, she had it cut and dried. She was going to lead him a nice little dance till it was time to get rid of him. She would take him down to Piccadilly Circus, trot him about there for some little time, and then get back to the Knightsbridge Tube Station.”

“Yes—and then?”

“I was to send a boy with a note to the Tube station at a certain time. I picked up a boy, giving him a full description of her, and packed him off. All happened as she expected. The man was tempted away by the boy, out of whom he could get nothing that would be of any use to him, and for a few moments left her unwatched. Hers was a bold stroke. While he was interviewing the urchin, she slipped into a descending lift, and left Mr Detective glaring at her from outside.”

Stent laughed appreciatively. “Well done!” he remarked. “But I have no doubt she would have hit upon something else had that failed.”

Farloe assented briefly. He was very fond of his sister, but it had always been rather a sore point with him to know that she had impressed everybody with the fact that she was much the cleverer and subtler of the two.

There was a brief pause. Then Farloe pointed to the table, upon which stood glasses, a decanter of whisky, and a syphon of soda-water.