At a room on the same floor Craig knocked.

"Come in," answered a woman's voice.

He pushed open the door. There was the woman who had fled so precipitately from the dope joint.

Evidently she did not recognize us. "You are under arrest," announced
Kennedy.

The blonde woman laughed mockingly.

"Under arrest? For what?"

"You are Marie Margot. Never mind about your alias. All the arts of your employees and Dr. Harris himself cannot change you so that I cannot recognize you. You may feel safe from the portrait parle, but there are other means of detection that you never dreamed of. Where is Betty Blackwell? Marie, it's all off!"

All the brazen assurance with which she had met us was gone. She looked from one to the other and read that it was the end. With a shriek, she suddenly darted past us, out of the door. Down the hall was Ike the Dropper with the policeman and Carton. Beside her was a stairway leading to the upper floors. She chose the stairs.

Following Kennedy we hurried through the hotel, from one dirty room to another, with their loose and creaking floors, rotten and filthy, sagging as we walked, covered with matting that was rotting away. Damp and unventilated, the air was heavy and filled with foul odours of tobacco, perfumery, and cheap disinfectants. There seemed to have been no attempt to keep the place clean.

The rooms were small and separated by thin partitions through which conversations in even low tones could be heard. The furniture was cheap and worn with constant use.