"When Mrs. Schwartz called upon your sister and proposed that she take dinner with her at her hotel she wanted the girl to go alone. When the girl accepted, Mrs. Schwartz named the Arena because she could accomplish her purpose there. It was the after-thought of the girl's that saved her and covered Mrs. Schwartz with confusion. She wrote down the name of the Hotel Iroquois for the express purpose of destroying the recollection of the Arena in the girl's mind. The Hotel Iroquois is a quiet family hotel of good reputation. "Mrs. Schwartz, as she calls herself, knew that the game was up when your sister mentioned you. Daring and bold as she is, she knows better than to try her wits with a man. "Had the girl accepted the invitation without mentioning your name the stage would have been set for her reception at the Arena. I doubt if the proprietors of the place would have known anything about this. The Arena is an assignation house, not a brothel. Had the girl gone to the Arena alone she would have been sent to the apartments which Mrs. Schwartz would have taken for her reception. She would have been plied with flattery, smothered with blandishments. Her little head would have been turned with compliments. At the psychological instant dinner would have been served. Dinner would include wine. Did the girl refuse to touch wine despite the subtle invitations and arts of the widow, her food and her water would have been 'doctored.' "Mrs. Schwartz is an adept in the gentle art of administering drugs. In less than an hour the innocent child would have been in the throes of delirium, wild, drunk, robbed of her morality through the insidiousness of the widow's dope. "Then the man would have been introduced. The scene would have changed from the little private dining room to the adjoining bedroom." The young man shuddered, and shut his eyes as if to close out the picture. The big detective went on, mercilessly: "The widow Schwartz and her male accomplice would have rejoiced in their triumph as the drugged innocent was robbed of her chastity. "Give the widow Schwartz two hours and the end would have been written. Then to call a cab, carry the unconscious child out of the Arena, bundle her off to the market place and sell her for one hundred--two hundred--five hundred--" "Stop!" said the young man. After an interval he said, "I put my possessions, such as they are, at your disposal. I want you to trap this woman. I want you to catch her. Surely you can--" "Catch her? Maybe. We'll try." The detective pressed a button. "Send in Miss B----," he said. A young woman returned with the messenger. She did not look like a detective. A young girl she was, of good figure, of pleasant countenance. Her eyes were large and striking. The detective held out a copy of the "Traveling Companion" want ad for her perusal.