"Theories," he corrected; "there are many. If the taxi came on Wednesdays on the other occasions, the fare may have smoked this kind of cigarette. If so, he may be the man who kidnapped Mrs. Fitzroy. He may have been hurrying the lady down the narrow path while Baker and his companion were standing on the front door step. Out of such theories a score of others come naturally." "By this time they may have heard of the driver at the police station. Shall I telephone?" "Not yet," said Quarles. "We will try and discover how Mrs. Fitzroy was dressed first." "And meanwhile we are giving our quarry time to escape," I said. "We must risk something, and we haven't got enough facts to support any theory yet. I wonder whether Mrs. Fitzroy did use the telephone much?" The speculation threw him into a reverie until Emma Lewin returned with the information that her mistress must have gone out dressed just as she had left her. No hat nor jacket nor wrap of any kind was missing, and she had not changed her indoor shoes. "Thank you; that helps us very much. I don't think you can help us any more at present." And then, when the girl had gone, Quarles turned to Baker. "I understand you searched the house last night for Mrs. Fitzroy?" "We did." "Was it a thorough search--I mean did you look into every corner, every drawer, every cupboard for some sign of her? Did you explore the cellars, which, I expect, are large?" "It was not quite as thorough as that," said Baker, trying to suppress a smile at the idea of finding Mrs. Fitzroy in a drawer, I suppose. "You expected to find the lady lying on the carpet here?" "Well, sir, I thought it likely at first; but, with the garden gate unfastened and the taxi in Melbury Avenue, I don't doubt the lady went that way." "After telephoning to the police that she was being murdered?" said Quarles. "I don't suggest that she went willingly," said Baker. "But you do suggest that, being convinced she had gone, your search of the house was not very thorough?" "I didn't mean to suggest that, either, sir," answered Baker, some resentment in his tone. "We want Zena here, Wigan, to ask one of her absurd questions," Quarles went on. "I'll ask one in her place. Why was the police station rung up at all?" "The woman rushed to the 'phone for help, and----" "My dear Wigan, the directory is open at the page giving the number of the police station. What was her assailant doing while she turned up the number and rang up the exchange?" "Probably he wasn't in the room, and her woman's wit----"