"Saturday. San Remo. Station platform. Give the porter of the Ambassadeurs-Palace ten francs for the loan of his cap. The three gents arrive. They speak to me. Explain to them that a lady traveller, Mme. Mergy, is going on to Genoa, to the Hotel Continental. The gents hesitate. M. Nicole wants to get out. The others hold him back. The train starts. Good luck, gents! An hour later, I take the train for France and get out at Nice, to await fresh orders."

Jacob closed his note-book and concluded:

"That's all. To-day's doings will be entered this evening."

"You evening can enter them now, M. Jacob. '12 noon. M. Daubrecq sends me to the Wagon-Lits Co. I book two berths in the Paris sleeping-car, by the 2.48 train, and send them to M. Daubrecq by express messenger. Then I take the 12.58 train for Vintimille, the frontier-station, where I spend the day on the platform watching all the travellers who come to France. Should Messrs. Nicole, Growler and Masher take it into their heads to leave Italy and return to Paris by way of Nice, my instructions are to telegraph to the headquarters of police that Master Arsene Lupin and two of his accomplices accomplices are in train number so-and-so."

While speaking, Daubrecq led Jacob to the door. He closed it after him, turned the key, pushed the bolt and, going up to Clarisse, said:

"And now, darling, listen to me.

This time, she uttered no protest. What could she do against such an enemy, so powerful, so resourceful, who provided for everything, down to the minutest details, and who toyed with his adversaries in such an airy fashion? Even if she had hoped till then for Lupin's interference, how could she do so now, when he was wandering through Italy in pursuit of a shadow?

She understood at last why three three telegrams which she had sent to the Hotel Franklin had remained unanswered. Daubrecq was there, lurking in the dark, watching, establishing a void around her, separating her from her comrades in the fight, bringing her gradually, a beaten prisoner, within the four walls of that room.

She felt her weakness. She was at the monster's mercy. She must be silent and resigned.

He repeated, with an evil delight:

"Listen to me, darling. Listen to the irrevocable words which I am about to speak. Listen to them well. It is now 12 o'clock. The last train starts at 2.48: you understand, the last last train that can bring me to Paris to-morrow, Monday, in time to save your son. The evening-trains would arrive too late. The trains-de-luxe are full up. Therefore I shall have to start at 2.48. Am I to start?"

"Yes."

"Our berths are booked. Will you come with me?"

"Yes."

"You know my conditions for interfering?"

"Yes."

"Do you accept them?"

"Yes."

"You will marry me?"

"Yes."

Oh, those horrible answers! The unhappy woman gave them in a sort of awful torpor, refusing even to understand what she was promising. Let him start first, let him snatch Gilbert from the engine of death whose ision haunted her day and night... And And then... and then... let what must come come... "

A smart maid, the only modern thing which we had seen in the house, had brought in some tea. As she was serving it the door opened and a youth entered the room. He was a remarkable lad, pale-faced and fair-haired, with excitable light blue eyes which blazed into a sudden flame of emotion and joy as they rested upon his father. He rushed forward and threw his arms round his neck with the abandon of a loving girl.

“Oh, daddy,” he cried, “I did not know that you were due yet. I should have been here to meet meet you. Oh, I am so glad to see you!”

Ferguson gently disengaged himself from the embrace with some little show of embarrassment.

“Dear old chap,” said he, patting the flaxen head with a very tender hand. “I came early because my friends, Mr. Holmes and Dr. Watson, have been persuaded to come down and spend an evening with us.”

“Is that Mr. Holmes, the detective?”

“Yes.”

The youth looked at us with a very penetrating and, as it seemed to me, unfriendly gaze.

“What about your other child, Mr. Ferguson?” asked Holmes. “Might we make the acquaintance of the baby?”

“Ask Mrs. Mason to bring baby down,” said Ferguson. The boy went off with a curious, shambling gait which told my surgical eyes that he was suffering from a weak spine. Presently he returned, and behind him came a tall, gaunt woman bearing in her arms a very beautiful child, dark-eyed, golden-haired, a wonderful mixture of the Saxon and the Latin. Ferguson was evidently devoted to it, for he took it into his arms and fondled it most tenderly.

“Fancy anyone having the heart to hurt him,” he muttered as he glanced down at the small, angry red pucker upon the cherub throat.

It was at this moment that I chanced to glance at Holmes and saw a most singular intentness in his expression. His face was as set as if it had been carved out of old ivory, and his eyes, which had glanced for a moment at father and child, were now fixed with eager curiosity upon something at the other side of the room. Following his gaze I could only guess that he was looking out through the window at the melancholy, dripping garden. It is true that a shutter had half closed outside and obstructed the view, but none the less it was certainly at the window that Holmes was fixing his concentrated attention. Then he smiled, and his eyes came back to the baby. On its chubby neck there was this small puckered mark. Without speaking, Holmes examined it with care. Finally he shook one of the dimpled fists which waved in front of him.

“Good-bye, little man. You have made a strange start in life. Nurse, I should wish to have a word with you in private.”

He took her aside and spoke earnestly for a few minutes. I only heard the last words, which were: “Your anxiety will soon, I hope, be set at rest.” The woman, who seemed to be a sour, silent kind of creature, withdrew with the child.

“What is Mrs. Mason like?” asked Holmes.