Day after day, probably, the unobtrusive detective had been trailing Halsey from the moment he left his apartment until the time when he returned, if he did return.

There was nothing of his goings and comings that was not already an open book to them.

Of what use was it, then, for Halsey to fight! It was a situation such as she delighted in.

She had made up her mind.
She would help Haddon Halsey to beat the law.
Already it seemed as if he knew that their positions had been reversed.
He had started to warn her; she now was saving him.
Yet even then he showed the better side of his nature.
"There is some one else, Mrs.Dunlap," he remarked earnestly, "who needs your help even more than I do." It had cost him something to say that.

He had not been able to accept her help, even under false pretenses.