The newcomer shook his head thoughtfully.

"What is your name?" he asked.

"Louis," was the quiet answer.

"Then, my friend Louis," the newcomer said, "understand me plainly. I am not here to be bamboozled, or to give you an opportunity for exercising any ability you may possess in the art of lying. I am here to see Delora, and if he is here, see him I will and must! If he is not here, well, it will come later. There is no roof nor any walls in London which will enclose that man and keep him from me!"

"Mr. Delora has no desire to hide himself from any one," Louis answered calmly.

"That is a statement which I may be permitted to doubt!" the visitor answered. "Is that the door of his sleeping chamber? If so, I am going in!"

He pointed to the door, through the transept of which I was looking into the sitting-room. Louis moved on one side.

"That is Mr. Delora's room," he said softly. "Perhaps you had better let me be sure that he is awake."

"You need not trouble," the other answered. "If he is asleep I shall wake him. If he is awake he will know very well that there is no escaping me."

He turned away from Louis. His hand was already outstretched toward the handle of my door. Then I saw Louis s.n.a.t.c.h the Malacca cane from its place and swing it behind his body. He was already poised for the blow--a blow which would have killed any man breathing--when I sprang to the ground and flung open the door.

"Look out!" I cried.

The newcomer sprang on one side. Louis, disturbed by my cry, lost his nerve, and the blow fell upon a small side table, smashing it through, and sending splinters flying into the air. Both men looked at me in the blankest of amazement. I came out into the sitting-room.

"You coward!" I said to Louis.

He shrank back against the wall. He still held the stick in his hand, but he showed not a sign of fight. The other man stood with clenched fists, as though about to spring upon him, but I stepped between them.

"In the first place," I said to the newcomer, "you had better look into that room. You will see that Mr. Delora is not there. I can a.s.sure you, from my own knowledge, that he has never been there. When you have finished, come back and tell me what you want with him."

Louis was still staring at me in amazement. The idea that I had discovered his attempt to make a cat's-paw of me was dawning upon him slowly, but knowing nothing of the transept, he could not account for my unexpected appearance. For once, at any rate, he had lost his nerve. I could see that he was shaking with fear.

"Come, Louis," I said, "put my stick down and talk like a man, if you can."

The stick fell from his fingers. He had scarcely strength enough left to hold it. Then the man who had been examining Delora's room came back and stepped past Louis up to me.

"I do not know why you are here, sir," he said. "You may be mixed up in this affair or you may not be. But if you are, let me warn you that you are on the wrong side. You saw his attempt?" he added, pointing to Louis. "I am going to wring the life out of him. He deserves it."

"No!" I answered, holding him back. "We will have no violence here. Louis has a little account to settle with me yet."

"He has a more serious one with me," the other muttered.

"Settle it when and where you will," I said, "but not here. As for me, I have no longer any interest in or concern with any of you. I came into this thing by accident, and to-night I go out of it. You, sir, must leave the hotel at once. I do not know your name or anything about you. It is not my concern. If you have anything to say to Louis, choose another time."

He looked at me curiously. I could see that with every nerve in his body he was longing to spring upon Louis.

"You seem to be a masterful person, sir," he said. "Why should I obey you?"

"Because I saved your life, for one thing," I answered, "and because I will allow no violence in this room, for another. And if you need a third reason," I added, "because I have the advantage of you in strength. You need not be afraid of my further interference," I continued. "I shall leave London to-morrow, and I hope that I may never see one of you again. Now will you go?"

"Yes, I will go!" he said. "Let me tell you this, sir," he added, as he neared the door. "Your decision is a wise one. If you knew whose cause you had been aiding, whose tool you had very nearly become, I think that your manner would be a little more apologetic."

"I have your word, sir, that you will leave the hotel?" I asked.

"At once," the other answered.

We heard him close the outer door and depart. Then I turned to Louis.

"Louis," I said, "so this is your adventure! This is the way you proposed to make use of me! You got me into that room and drugged me. I was to lie there while you murdered that man with my weapon.

Then you would creep away, and in the morning there was I and the dead man! I was to be the tool,--the girl there the lure. It was well worked out, Louis, but it was a coward's plan and a coward's trick!"

I reached out my hand and took him by the collar. I felt as though I were grasping some unclean insect, from whom the sting might shoot out at any moment.

"Have you anything to say?" I asked.

"You do not understand," he said, in a low tone. "I did not mean to put this thing upon you. I meant, perhaps, to disable that man who has just left. If you knew his history and mine, you would not wonder at it. But I meant to see that he was safely removed."

"Then why did you bring me down into that room," I asked, "under a false pretence? Why did you use that murderous cane of mine for your crime? Why did you insist upon it that I should be seen dining with the girl--G.o.d knows who she is!--who is in that room?"

"I can explain everything," Louis said. "I am confused! I cannot help it--you came so unexpectedly!"

"Unexpectedly indeed," I answered, "because I poured your whiskey and soda out of the window, and because I took an antidote to your coffee!"

"You speak of things which I do not understand," Louis declared.

"Oh! tell me no more lies!" I exclaimed. "Listen! You see I have you by the collar, and I have my cane. Now I am going to beat you till every bone in your body aches, till you will not be able to crawl about, until you tell me the real history of these things. For every lie--if I know it to be a lie--I shall strike you. Tell me who that man Delora is? Tell me who the girl is, posing as his niece, who meets you here after midnight? Tell me the name of that man who has just left us? Tell me how you are all bound together, and what your quarrel is? And tell me where Delora is now?"

"I have no strength," he gasped. "You are too rough. Let me sit down quietly. I must think."

"No!" I answered. "Speak! Speak now!"

I raised the stick as though to strike him. Then I saw a sudden change in his face. I looked toward the door. Almost as I did so I heard the faint flutter of moving draperies. Felicia stood there looking in upon us, her hands uplifted, her face full of terror.

"It is Capitaine Rotherby!" she cried. "Tell me, then, what has happened? Capitaine Rotherby!"

She came a little toward us, but I think that she read in my face something of what I was feeling, for she stopped suddenly and her lips quivered.

"What has happened?" she demanded. "Will neither of you tell me? Is my uncle worse? Has any one--any one tried to do him an injury?"

"Nothing is the matter," I answered, "except that we have come to an end of this tissue of lies and plots and counterplots. There is no uncle of yours in that room, nor ever has been. The man who was to have been murdered here has gone. And for the rest, I saw you here with Louis and I heard your conversation less than an hour ago."

"You saw us?" she gasped.

"From the transept there," I answered, pointing towards it. "I was brought into that room to personate your uncle, to receive an attack which was meant for him--a very clever scheme! I was drugged, and was to have lain there to cover this fellow's crime. But there, I don't suppose that I need tell you any of these things!" I added brutally.

She looked at me with horror.

"You do not believe--" she gasped.