"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 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 are in train number so-and-so."

While speaking, Daubrecq 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 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 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 then... and then... let what must come come... "

It was not possible for me to follow the immediate steps taken by my friend, for I had some pressing professional business of my own, but I met him by appointment that evening at Simpson’s, where, sitting at a small table in the front window and looking down at the rushing stream of life in the Strand, he told me something of what had passed.

“Johnson is on the prowl,” said he. “He may pick up some garbage in the darker recesses of the underworld, for it is down there, amid the black roots of crime, that we must hunt for this man’s secrets.”

“But if the lady will not accept what is already known, why should any fresh discovery of yours turn her from her purpose?”

“Who knows, Watson? Woman’s heart and mind are insoluble puzzles to the male. Murder might be condoned or explained, and yet some smaller offence might rankle. Baron Gruner remarked to me —”

“He remarked to you!”

“Oh, to be sure, I had not told you of my plans. Well, Watson, I love to come to close grips with my man. I like to meet him eye to eye and read for myself the stuff that he is made of. When I had given Johnson his instructions I took a cab out to Kingston and found the Baron in a most affable mood.”

“Did he recognize you?”

“There was no difficulty about that, for I simply sent in my card. He is an excellent antagonist, cool as ice, silky voiced and soothing as one of your fashionable consultants, and poisonous as a cobra. He has breeding in him — a real aristocrat of crime with a superficial suggestion of afternoon tea and all the cruelty of the grave behind it. Yes, I am glad to have had my attention called to Baron Adelbert Gruner.”

“You say he was affable?”

“A purring cat who thinks he sees prospective mice. Some people’s affability is more deadly than the violence of coarser souls. His greeting was characteristic. ‘I rather thought I should see you sooner or later, Mr. Holmes,’ said he. ‘You have been engaged, no doubt by General de Merville, to endeavour to stop my marriage with his daughter, Violet. That is so, is it not?’

“I acquiesced.

“ ‘My dear man,’ said he. ‘you will only ruin your own well-deserved reputation. It is not a case in which you can possibly succeed. You will have barren work, to say nothing of incurring some danger. Let me very strongly advise you to draw off at once.’

“ ‘It is curious,’ I answered, ‘but that was the very advice which I had intended to give you. I have a respect for your brains, Baron, and the little which I have seen of your personality has not lessened it. Let me put it to you as man to man. No one wants to rake up your past and make you unduly uncomfortable. It is over, and you are now in smooth waters, but if you persist in this marriage you will raise up a swarm of powerful enemies who will never leave you alone until they have made England too hot to hold you. Is the game worth it? Surely you would be wiser if you left the lady alone. It would not be pleasant for you if these facts of your past were brought to her notice.’