O'Reilly's first look into the sitting room was not for the girl. Involuntarily, it seemed, he sent a lightning glance to the left, to that side of the room farthest from the big chair where she sat. Clo's desperate need to know what was in his head inspired her with clairvoyance. Consciousness lit her brain once more. She was sure that she had read his thoughts. He feared that after all she was fooling him. He was saying in his mind: "What if she meant me to go and fetch this water while she looks for what she wants to find?"

Now Clo was certain at last, not only of his having the papers, but that they were in the room, somewhere on that left side, where his glance had flashed. It was hard to keep still, without the flicker of an eyelash; but she believed, as O'Reilly came back to her, that she had stood the test of his stare.

He moistened his handkerchief, and gingerly dabbed the girl's forehead. It was a relief to "come to," to be able to start, and draw a long breath.

"There! You're better, aren't you?" he asked.

"Yes," she breathed. "I should like to go home, but I'm afraid——"

"Don't be. I'm going with you," he said. "By this time a taxi's waiting for us. Do you think you can walk if I give you my arm?"

"I'll try," Clo answered, gratefully.

No pretence of weakness was needed. She felt like a rag. O'Reilly took her by the hand, and with an arm round the slim waist raised the girl to her feet. Once up, she swayed as if she might fall, but he held her firmly. "Lean against me," he said, in a kind voice.

She had never before been so near to a man in her life. "You're very good to me," she whispered. "I should like you, please, to remember that I thank you."

"I'm sorry I said you deserved to be thrown out of the window," O'Reilly absolved himself. "Whatever else you may be, you're a good plucked one. Now, here we are at the door. Are you sure you can walk to the elevator? Hang on to my arm."

She hung on to it.

They reached the lift, which came to them in a few seconds, unoccupied save for the youth who ran it. Clodagh kept up bravely until she was seated in the taxi, and could have kept up until the end without too great an effort, for her collapse had made her feel rested. It was not, however, the girl's mÉtier to "keep up." The task was but half accomplished. The hardest part was to come.

She knew—or thought she knew—that O'Reilly had the papers, that they were in New York; not only in New York, but in his private sitting room at the Dietz Hotel. They were in some hiding-place there; and for an instant he had feared her knowledge of its existence. He had expected her to try, while his back was turned, to steal its contents. Clo's nimble brain, deducing all this from what had happened, deduced something else as well. The man would have had no fear if the secret were impossible for an outsider to learn. It could not be impossible. It couldn't even be difficult, if she might have solved the puzzle while his back was turned. For her, O'Reilly's uneasiness was a hopeful sign. Somewhere on the window side of his private parlour at the Dietz the papers which Angel needed were hidden. Each second during the girl's slow progress to the lift, her descent, and her short walk to the taxi, was spent in sorting out these deductions.

Those big black eyes of Clodagh Riley's had not been given her in vain. One swift glance during the cold-water treatment had shown her many details useful to remember. On one side of the window was a desk. In the desk was a drawer, and the key thereof was in the keyhole. It seemed improbable that secret papers should be kept in such a place, but circumstances might have forced O'Reilly to leave them there.

On the other side of the window was a kind of buffet, with glass doors and shelves and a closed cupboard, but Clo had less hope of this than of the desk. There might be a less obvious hiding hole than either, perhaps a sliding panel in the wall. There must in any case be a key, and that key must be on the person of O'Reilly.

She would have to use all her wits to get it while they were together in the taxi! And there was the key of the suite to get also; but that would be easier. She had seen O'Reilly take the big key from a table, as they went by, slipping it into the pocket of his dinner jacket. Forced to support his half-fainting guest, he had not put on an outer coat, so the key was within reach of clever and determined fingers. Clodagh's were determined, and—she hoped—clever.

With this design burning in her head and tingling in her hands, she decided to faint again as they started for home, and keep O'Reilly occupied every inch of the way.

"I'm afraid—I'm not so strong—after all——" she sighed, as the taxi door shut, and proceeded to "flop" like a large rag doll. Her head fell on the man's breast, and rolled across to his left arm, her hat askew.

"I'm very ill," she moaned. "Something hurts so! My hat-pin——" And her voice trailed into silence.

"Poor child!" the man exclaimed, completely taken in at last. The hat-pin was sticking in very deep! Not that she minded a little pain. But the great thing was to keep O'Reilly's hands busy.

Clumsily, obstinately, he fumbled among the meshes of ostrich plume wound around her hat. The head of the pin eluding him there, he tried beneath the brim, his fingers tangling in thick waves of hair. They were soft waves, softer and silkier than the ostrich plume. No man with blood in his veins could have touched them without a thrill. The girl on his breast, her face on his arm, one hand holding her up, another caught in her hair, O'Reilly was conscious of electric shocks.

His hands and attention thus engaged, Clo got the chance she'd waited for. Delicately, stealthily, like the "mouse" she called herself, she extracted the door key from O'Reilly's pocket. So far, so good. But the next deed would try her mettle. Lightly as a flitting shadow the small fingers moved over the man's waistcoat, from the belt line to the breast. She could feel his heart thump, and almost started, but controlled herself.

Clo had noticed that men often wore a short chain or ribbon, attached to a watch, and hanging from the waistcoat pocket with a seal, a society badge or a lucky souvenir. O'Reilly wore no ornament of that sort; but there was a watch, a thin watch which she could feel through the cloth, and some flat object with it. If she could slip a finger into that pocket without his knowing!

But now they were in Park Avenue, not far from the imposing apartment house at the corner, where Mr. and Mrs. Sands lived. Clo availed herself of a slight bump, and showed signs of sliding off the seat. O'Reilly, who had just extracted the hat-pin and stuck it into his coat, steadied her with an effort. Fortunately there was no need to look out and stop the chauffeur. That afternoon O'Reilly had passed the building, informed by Count Lovoresco who lived there, and had looked up with a certain curiosity. He remembered the number, and in leaving the Dietz had been able to give the address.

The taxi stopped, and O'Reilly prepared to carry the fainting girl into the house. She would be a light load. As he got out of the taxi with Clo in his arms a man came forward.

"Won't you let me help you, sir?" he civilly inquired.

"You may run ahead," said O'Reilly. "I can manage the young lady myself."

The man who had offered his services disappeared into the house, and found the porter, a substantial person in livery. Clo conveniently revived when placed on the seat of the lift. O'Reilly sat by her side, supporting the limp body, her hat in his hand, while the porter shot the elevator up to the Sands' floor.

"Lord a'mighty!" the old fellow exclaimed, "if this ain't the poor child that's been an invalid all these weeks! Mrs. Sands will be in a way! Must be near eight weeks since this little gal was brought in on a stretcher, lookin' like dead. She ought to be in bed."

"Somebody should have looked after her," said O'Reilly.

"That's it, sir. Her nurse is out, gaddin'."

"Brute!" Clo heard O'Reilly mutter. And leaning comfortably against his shoulder she felt wicked, treacherous, because she had more than once applied the same epithet to him. Whatever happened, never would she do that again!

The elevator stopped. The porter touched the electric bell at the Sands' door, and almost instantly a manservant appeared. His cry of surprise brought Mrs. Sands herself out from a room at the end of the hall. The porter tried to explain everything; failed; broke off to question O'Reilly; O'Reilly answered; Beverley exclaimed; and among them, all was confusion. Clo, looking through half-shut eyes over her bearer's shoulder, saw a shadow flit between the portiÈres. Had some one come in? If so, who could it be? Or was it only the shadow of a blowing curtain she had seen? The question did not strike her as important just then, for if any one had passed it was doubtless a servant or, at worst, Sister Lake. Besides, Clo had much to think of; how to come back to consciousness quickly without rousing suspicion, and, when officially alive again, how to escape for the next errand.

The rush of air and babble of excited voices gave her an excuse to gasp, and stammer out a conventional "Where am I?"

"We'll get you to your room, dear," said Beverley; and Clo wondered if her acting had deceived Angel. "The butler can——"

"No, thanks, I'll manage her by myself," O'Reilly broke in and carried the white bundle along the hall.

"This is her room," Mrs. Sands explained to him. "If you will put her on the bed...."

"No—please! Take me on into the next room, Sister Lake's room. I must be there. I'll tell you why presently," the girl pleaded.

Beverley threw open the door between the two rooms, hurried ahead, and turned on a light.

"Now, lay me on this bed," Clo commanded.

Having obeyed, O'Reilly stood as if awaiting further orders. Clo glanced from him imploringly to Mrs. Sands. "I've gone through such a lot!" she moaned. "I've suffered so! I felt I could never get home alive. Please, Mr. O'Reilly—you've been kind—don't let it all be for nothing!"

"What do you want of me?" he stiffly inquired.

"Only for you to talk to Mrs. Sands. In that next room—my room. Nobody will disturb you. If the nurse comes back, she'll come into her own room first. That's why I asked you to bring me to it. I couldn't persuade you to give me the papers. Perhaps even Mrs. Sands can't persuade you. But I beg, I pray you, to give her the chance. Listen to what she has to say."

"Very well," he answered, grudgingly. "I'll do what you ask. But I'll do it for your sake."

Beverley had remained on the threshold of the next room. Now she retreated into it. O'Reilly followed; but at the door he turned. "Good-bye," he said to Clo.

"Good-bye," she echoed. "And thank you again—for everything."

She had more to thank him for than he knew—the contents of her tightly clutched hand.