The woman seemed to grow weaker and weaker. Her closed eyes, her slow but regular breathing, indicated that the drug he had given her had begun to take effect. Stealthily Duvall's hand reached toward the small black satchel. With eager fingers he pressed the catch, and as the bag opened, began to draw out its contents.
The woman, however, seemed far less helpless than he had supposed. She pulled the satchel toward her, her fingers seeking to close it. Duvall discontinued his efforts at once. It would be time enough, he felt, when they had reached the hotel, and the woman had been safely conducted to a room there. He had made his plans carefully in advance, and arranged matters with the hotel manager. There was nothing to do, now, but wait.
Presently the woman, who had been regarding him, unnoticed, from beneath lowered lids, uttered a groan, as though in great pain, and clutched her breast. Duvall turned to her at once, speaking in a soothing voice, and assuming a professional manner.
"Is anything wrong, Miss? I had hoped you were feeling better."
"No, doctor. I'm not. I feel terrible—terrible."
"In what way?"
"My—my heart. It is in awful shape. I need some stimulant. The—the medicine you gave me made me feel very ill."
Her words surprised Duvall. He had given her a simple drug, the effect of which should have been to make her drowsy, to quiet her nerves. That she had not taken it, he of course did not know. His greatest fear had been that she would refuse to enter the cab with him. Now that she had done so, he was prepared to use even force, if necessary, to retain her in his custody until he had either obtained the evidence he desired, or forced from her a confession. What he particularly hoped to find was the seal with which the death's head impression had been made. He felt certain that, if this was the woman he sought, she would have this seal somewhere about her person. It was far too significant a bit of evidence to be left lying about at home.
But there was always the chance that this woman, who had been so instantly affected by the ghastly apparition on the screen, the significant words beneath it, might not, after all, be the right one, the one he sought. There was always the possibility that the real criminal, although present in the audience, had made no sign, and that his companion in the cab might be entirely innocent. As he had told Baker, it was a chance—a long chance, yet something seemed to say to him that he had made no mistake in taking it. Now, however, a new situation had arisen to upset his plans. His prisoner, instead of having been quieted by the drug he had administered, was apparently becoming more and more agitated and nervous every minute. Her groans, as she lay huddled up in the corner of the cab, puzzled him, filled him with vague alarm. Was it possible that she had a weak heart? Had the sedative he had given her, harmless as he knew the dose would be to a normal person, affected her in so unfavorable a way? He took her wrist in his hand, and felt her pulse. It was quick, indicative of nervous excitement, but certainly not weak.
"Oh—doctor, doctor, won't you please give me something to make me feel a little better?" the woman gasped. "It's my heart, I tell you. I—I can't breathe. I'm suffocating. I must have something at once—some aromatic spirits of ammonia—some brandy—anything, to make me feel a little better."
Her earnestness, her trembling voice, her excited manner, all served to convince Duvall that his companion was really in need of a stimulant of some sort. He decided to humor her. A dose of aromatic spirits, he reflected, could do no harm, and would doubtless serve to lessen her excitement. He leaned out, and directed the driver of the cab to stop at the nearest drug store.
"Oh—thank you—thank you," the woman gasped. "Tell him to hurry, please." Then collapsing in the corner of the seat, she closed her eyes and sat so silent that Duvall began to wonder whether she had lost consciousness.
The taxicab, meanwhile, had drawn up in front of a drug store on Sixth Avenue. Duvall took a look at the apparently unconscious woman, then spoke quickly to the chauffeur.
"Stay here until I return," he said. "Don't go away under any circumstances. I shall be gone but a moment."
The man nodded.
"I'll stay, sir," he said. "Don't worry."
Duvall went quickly into the store. Going up to the soda counter, he instructed the clerk to prepare him a dose of aromatic spirits of ammonia as quickly as possible. While waiting for it, he watched the cab through the store window.
The preparation of the dose required but a few moments. Then, explaining matters to the clerk, Duvall took the glass in his hand and went back to the cab. He smiled to himself at his anxiety, as he passed through the door. The woman was far too ill, he reflected, to entertain any thoughts of escape.
"Here," the detective said, opening the door of the cab. "Drink this."
There was no response. Duvall stuck his head into the vehicle with some misgivings. Then he experienced a sudden and most mortifying shock. There was no fainting woman huddled against the cushions in the far corner. There was no woman at all. The cab was empty!
Chapter 5
Richard Duvall had had charge of many unusual and intricate cases, in the past, and he prided himself upon the fact that he had handled them with skill and discretion, and that the results which had followed had been both quick and decisive. But in all his career he had not, so far as he could remember, ever felt quite so chagrined, as he did when he threw open the door of the cab and found that the woman he had left there had disappeared.
The fault was his, he knew that well—entirely and unmistakably his. This woman was evidently far more clever, more subtle than he had imagined. He realized now that she had in all probability not taken the drug he had given her in the dressing room of the theater, that she had seen his effort to examine the contents of her handbag, that her weakness, her call for a stimulant of some sort had been but clever acting, and that she had purposely sent him into the drug store in order that she might escape. He blamed himself, utterly and completely, for his amazing stupidity in not realizing that the woman, instead of ordering the cabman to drive away, had only to slip out through the door on the opposite side of the vehicle, and vanish in the darkness.
And this she had quite evidently done. The door of the cab opposite him stood open. No doubt she had purposely refrained from closing it, fearing that the click of the lock might attract the driver's attention. The latter with his eyes following Duvall, as the detective entered the store, had remained serenely unconscious of his passenger's movements, her clever escape.
At least three or four minutes had elapsed. Duvall glanced up and down the street, but no sight of the vanished woman greeted his anxious gaze. She had had ample time to reach the next corner, and disappear in the darkness. Thoughts of pursuit entered his mind, but he realized at once the fruitlessness of such an attempt. His captive might have fled east or west, at either of the streets north or south of where he stood. Or she might have entered some restaurant, some motion picture house, or other convenient doorway along the Avenue. She might even have boarded a Sixth Avenue car, or hailed a passing cab. He looked up at the chauffeur, who still sat at his steering wheel, totally unaware of the flight of one of his passengers.
"The woman has gone," Duvall exclaimed, nodding toward the vacant cab.
The man turned in complete surprise. He seemed scarcely able to credit the evidence of his senses.
"I—why
