“You've got the money. That's what you came for, wasn't it?” she suggested coldly.
He stared at her for a moment, and then his face gradually lost its scowl.
“You're a rare one, Bertha!” he exclaimed admiringly. “Yes; I've got the money—and I'm going. In fact, I'm in a hurry, so don't worry! You got the dope, like everybody else, for to-night, didn't you? It was sent out two hours ago.”
The dope! It puzzled her for the fraction of a second—and then she remembered the paper she had thrust into the bodice of her dress. She had not read it. She lunged a little in the dark.
“Yes,” she said curtly.
“All right!” he said-and moved toward the door. “That explains why I'm in a hurry—and why I can't stop to oil that grouch out of you. But I'll keep my promise to you, too, old girl. I'll make up the last few days to you. Have a heart, eh, Bertha! 'Night!”
She did not answer him. It seemed as though an unutterable dread had suddenly been lifted from her, as he passed out of the door and began to descend the steps to the hall below. Her “grouch,” he had called it. Well, it had served its purpose! It was just as well that he should think so! She followed to the door, and deliberately slammed it with a bang. And from below, his laugh, more an amused chuckle, echoed back and answered her.
And then, for a long time she stood there by the door, a little weak with the revulsion of relief upon her, her hands pressed hard against her temples, staring unseeingly about the garret. He was gone. He filled her with terror. Every instinct she possessed, every fiber of her being revolted against him. He was gone. Yes, he was gone—for the time being. But—but what was the end of all this to be?
She shook her head after a moment, shook it helplessly and wearily, as, finally, she walked over to the washstand, took the piece of paper from the bodice of her dress, and spread it out under the candle light. A glance showed her that it was in cipher. There was the stub of a pencil, she remembered, in the washstand drawer, and, armed with this, and a piece of wrapping paper that had once enveloped one of Gypsy Nan's gin bottles, she took up the candle, crossed the garret, and sat down on the edge of the cot, placing the candle on the chair in front of her.
If the last three days had been productive of nothing else, they had at least furnished her with the opportunity of studying the notebook she had found in the secret hiding place, and of making herself conversant with the gang's cipher; and she now set to work upon it. It was a numerical cipher. Each letter of the alphabet in regular rotation was represented by its corresponding numeral; a zero was employed to set off one letter from another, and the addition of the numerals between the zeros indicated the number of the letter involved. Also, there being but twenty-six letters in the alphabet, it was obvious that the addition of three nines, which was twenty-seven, could not represent any letter, and the combination of 999 was therefore used to precede any of the arbitrary groups of numerals which were employed to express phrases and sentences, such as the 739 that she had found scrawled on the piece of paper around her key on the first night she had come here, and which, had it been embodied in a message and not preceded by the 999, would have meant simply the addition of seven, three and nine, that is, nineteen—and therefore would indicate the nineteenth letter of the alphabet, S.