He walked to and fro, as though reflecting upon his answer. Then he, in his turn, put his hand on the Englishman's shoulder:
"After due consideration, Mr. Shears, I prefer to settle my little affairs alone."
"Still...."
"No, I don't want anybody's help."
"When Ganimard has you, it will be up with you. They won't let you go again."
"Who knows?"
"Come, this is madness. Every outlet is watched."
"One remains."
"Which one?"
"The one I shall select."
"Words! Your arrest may be looked upon as effected."
"It is not effected."
"So...?"
"So I shall keep the blue diamond."
Shears took out his watch:
"It is ten minutes to three. At three o'clock, I call Ganimard."
"That gives us ten minutes to chat in. Let us make the most of our time, Mr. Shears, and tell me, to satisfy the curiosity by which I am devoured: how did you procure my address and my name of Flix Davey?"
Keeping a watchful eye on Lupin, whose good-humour made him feel uneasy, Shears gladly consented to give this little explanation, which flattered his vanity, and said:
"I had your address from the blonde lady."
"Clotilde?"
"Yes. You remember ... yesterday morning ... when I meant to carry her off in the motor-cab, she telephoned to her dressmaker."
"So she did."
"Well, I understood later that the dressmaker was yourself. And, last night, in the boat, thanks to an effort of memory which is perhaps one of the things of which I am most proud, I succeeded in recollecting the last two figures of your telephone number: 73. In this way, as I possessed the list of the houses which you had 'touched up,' it was easy for me, on my arrival in Paris at eleven o'clock this morning, to look through the telephone directory until I discovered the name and address of M. Flix Davey. The name and address once known, I called in the aid of M. Ganimard."
"Admirable! First-rate! I make you my bow! But what I can't quite grasp is that you took the train at the Havre. How did you manage to escape from the _Hirondelle_?"
"I did not escape."
"But ..."
"You gave the captain orders not to reach Southampton until one o'clock. Well, they landed me at twelve and I caught the Havre boat."
"The captain played me false? Impossible."
"He did not play you false."
"What then...?"
"It was his watch."
"His watch?"
"Yes, I put his watch on an hour."
"How?"
"The only way in which one can put a watch on, by turning the winder. We were sitting together chatting and I told him things that interested him.... By Jove, he noticed nothing!"
"Well done; well done! It's a good trick and I must remember it. But what about the cabin clock?"
"Oh, the clock was more difficult, for my legs were bound: but the sailor who was put in charge of me whenever the captain went on deck kindly consented to give the hands a push."
"The sailor? Nonsense! Do you mean to say, he consented...?"
"Oh, he did not know the importance of what he was doing! I told him I must, at all costs, catch the first train to London and ... he allowed himself to be persuaded...."
"In consideration...."
"In consideration of a little present ... which the decent fellow, however, intends faithfully to send to you."
"What present?"
"A mere nothing."
"Well, but what?"
"The blue diamond."
"The blue diamond!"
"Yes, the imitation one, which you substituted for the countess's diamond and which she left in my hands...."
Arsne Lupin gave a sudden and tumultuous burst of laughter. He seemed ready to die: his eyes were wet with tears:
"Oh, what a joke! My faked diamond handed back to the sailor! And the captain's watch! And the hands of the clock!..."
Never before had Holmlock Shears felt the struggle between Arsne Lupin and himself grow so intense as now. With his prodigious intuition, he guessed that, under this excessive gaiety, Lupin was concentrating his formidable mind and collecting all his faculties.
Lupin had gradually drawn closer. The Englishman stepped back and slipped his fingers, as though absent-mindedly, into his pocket:
"It's three o'clock, M. Lupin."
"Three o'clock already? What a pity!... We were having such fun!"
"I am waiting for your answer."
"My answer? Goodness me, what a lot you want! So this finishes the game. With my liberty for the stakes!"
"Or the blue diamond."
"Very well.... It's your lead. What do you do?"
"I mark the king," said Shears, firing a shot with his revolver.
"And here's _my hand_," retorted Arsne, hurling his fist at the Englishman.
Shears had fired at the ceiling, to summon Ganimard, the need for whose intervention now seemed urgent. But Arsne's fist caught him full in the wind and he turned pale and staggered back. Lupin gave one bound toward the chimney and the marble slab moved.... Too late! The door opened.
"Surrender, Lupin! If not...."
Ganimard, who had doubtless been posted nearer than Lupin thought, stood there, with his revolver aimed at him. And, behind Ganimard, ten men, twenty men crowded upon one another's heels, powerful, ruthless fellows, prepared to beat Lupin down like a dog at the least sign of resistance.
He made a quiet gesture:
"Hands off there! I surrender."
And he crossed his arms over his chest.
* * * * *
A sort of stupor followed. In the room stripped of its furniture and hangings, Arsne Lupin's words seemed drawn-out like an echo:
"I surrender!"
The words sounded incredible. The others were expecting to see him vanish suddenly down a trap or a panel of the wall to fall back and once more to hide him from his assailants. And he surrendered!
Ganimard stepped forward and, greatly excited, with all the gravity that the act demanded, brought his hand slowly down upon his adversary's shoulder and enjoyed the infinite satisfaction of saying:
"Lupin, I arrest you."
"Brrrrr!" shivered Lupin. "You make me feel quite overcome, my dear Ganimard. What a solemn face! One would think you were making a speech