I shook my head.

"Only that he must be some relation to Delora," I declared. "There has been no time, though, for his brother to get across from South America."

Lamartine smiled.

"You are dull," he said. "But watch! What is going to happen now, I wonder?"

Delora had risen to his feet. He had the look of a man who has received a shock. He brushed past some people who were taking their places at a table without remark or apology. He pa.s.sed my companion and myself without even, I believe, being conscious of our presence.

He walked straight to the table where the two newcomers sat. I saw his hand fall upon the shoulder of the other man.

"Ferdinand!" he said.

The lady of the turquoises was leaning forward in her place as though to push Delora away. A few feet in the background Louis was hovering.

"Ferdinand," I heard Delora repeat, "what are you doing here? Who is this person? You know that you are not well enough to travel."

The older man looked at him with a slightly puzzled air. There was a certain vacuity in his expression, for which one found it hard to account.

"You!" he murmured, as though perplexed. "Why, this is not Paris, Maurice!"

Louis had glided a little nearer to the table. My lady of the turquoises half rose to her feet. Her blue eyes were fierce with anger. She looked as though she would have struck Delora.

"You shall not take him away!" she cried. "Don't have anything to say to them!" she added, bending downwards to her companion. "You are not safe with any one else except me!"

Delora turned towards her with an angry exclamation.

"Madame," he said, "this gentleman is my relation, and he is ill. He is certainly not in a condition to be travelling about the country with--with you!"

Her self-control was beginning to evaporate. She addressed him shrilly. People at the surrounding tables were beginning to observe this unusual conversation.

"What, then?" she cried. "Is he not safer with me than you? How about Henri--Henri who came over here because we had been deceived, he and I,--poor Henri who died?"

"This," Delora muttered, "is your revenge, then!"

"It is my revenge, and I mean to have it," she answered, "This afternoon you will see."

Louis advanced and bowed to the man who still sat at the table, looking a little puzzled, and with his eyes still fixed upon Delora.

"Monsieur," he said, "shall I serve luncheon?"

There was an instant's pause. I fancied that I saw something pa.s.s between Louis and Delora. The latter turned away with a little shrug of the shoulders.

"Presently will be time," he said. "We will speak together, all three of us, before you leave."

The woman struck the table with the palm of her hand.

"There is nothing which you need say!" she exclaimed. "It is finished, this fine scheme of yours! See, he is here himself. This afternoon we go to warn those whom you would rob!"

Once more that look flashed between Louis and Delora, and this time there was borne in upon me the swift consciousness of what it might mean. Delora returned to his place opposite Felicia. I bent across the table to Lamartine.

"Lamartine," I said, "there was a man who came here once--a companion of that woman--Bartot. He came to make trouble with Louis, and he dined here once. He dined nowhere else on earth!"

Lamartine was suddenly grave.

"Would Louis dare!" he muttered.

"Why not?" I answered. "See, Louis is watching us even now!"

Lamartine half rose from his seat. I pushed him back.

"No!" I said. "It is not for you! It is I who will arrange this thing."

I left my place and walked towards the table where the two were sitting. I saw Delora lay down his knife and fork and watch me with fixed, intent gaze. I saw Louis' lips twist into a snarl. He glided to the table even as I did. I held out my hand to the woman.

"You have not forgotten me, I hope?" I asked. "I am very glad indeed to see you in London."

She gave me her hand, and smiled her most bewitching smile. I turned and stared at Louis. He had no alternative but to fall back a pace or two.

"Madame," I said, bending towards her, "it was here that Bartot came and dined. I have heard it whispered that it is not safe to eat here if you are not a friend of Louis'!"

For a moment she failed to grasp the significance of my words. Then the color died slowly out of her cheeks. Her face was like the face of an old woman. Fear had come suddenly, and she was haggard.

"You mean that he would dare, monsieur?" she said--

"It is easy," I answered. "A dozen or more of these waiters are his creatures. From what I have heard I gather that your visit here with this gentleman is for a purpose inimical to some scheme in which Delora and Louis are interested. I warn you that if it is so, you had better change your mind about lunching."

"We will go at once!" she answered. "You are very kind. I came to confront Louis and that other with me," she declared, nodding vigorously at her companion. "I came because I would have them understand who it was that had ruined their plans, because they made use of me--of Bartot and me--and threw us aside like gloves that were finished with. But it was a foolish thing to do, monsieur. I see that, and I thank you now for your warning."

She gathered her things together for her departure, and leaned across towards her companion. What she said to him I do not know, for I returned to my place.

"They will not eat," I whispered to Lamartine. "Tell me, who is the man?"

"Hush!" Lamartine said. "Look there!"

Apparently angry words had been pa.s.sing between Felicia and Delora. She had risen to her feet, notwithstanding his efforts to detain her, swept past my table with scarcely a glance, and made her way towards where the two latest arrivals were sitting. She stooped down towards the man, and talked to him earnestly for several moments.

All the time he looked at her with the puzzled, half-vacant expression of a child who is confronted with something which it does not understand. Delora had risen to his feet, and stood nervously clutching the serviette in his hand. Louis hurried up to him, and they talked together for a moment.

"At all costs," I heard Louis say, "she must be fetched away. They will not remain here to eat. Rotherby has warned them. See how he is looking at her! It is not safe!"

Something more pa.s.sed between them in a low tone. Delora glanced at his watch, and then at the clock. Finally he crossed the room to where his niece was standing, and laid his hand upon the man's shoulder.

"Ferdinand," he said, "I am glad to see that you are better. Come up to my rooms for a few minutes. We must have a talk."

At the sound of his voice something seemed to come back to the face of the older man. He rose slowly to his feet. I could see his white fingers trembling, but I could see his eyes suddenly fill with a new and stronger light.

"You!" he exclaimed. "Yes, I am here to talk to you! It had better be at once! Lead the way!"

I saw Delora look towards the lady of the turquoises. Apparently he made some remark which I failed to overhear.