"Oh, no doubt, when you come out of prison," said Guerchard ironically; and he laughed a grim, jeering laugh.
"I've got to go to prison first," said Lupin quietly.
"Pardon me—if you accept, I mean to arrest you," said Guerchard.
"Manifestly you'll arrest me if you can," said Lupin.
"Do you accept?" said Guerchard. And again his voice quivered with anxiety.
"Well," said Lupin. And he paused as if finally weighing the matter.
"Well?" said Guerchard, and his voice shook.
"Well—no!" said Lupin; and he laughed a mocking laugh.
"You won't?" said Guerchard between his teeth.
"No; you wish to catch me. This is just a ruse," said Lupin, in quiet, measured tones. "At bottom you don't care a hang about Sonia, Mademoiselle Kritchnoff. You will not arrest her. And then, if you did you have no proofs. There ARE no proofs. As for the pendant, you'd have to prove it. You can't prove it. You can't prove that it was in her possession one moment. Where is the pendant?" He paused, and then went on in the same quiet tone: "No, Guerchard; after having kept out of your clutches for the last ten years, I'm not going to be caught to save this child, who is not even in danger. She has a very useful friend in the Duke of Charmerace. I refuse."
Guerchard stared at him, scowling, biting his lips, seeking a fresh point of attack. For the moment he knew himself baffled, but he still clung tenaciously to the struggle in which victory would be so precious.
The front-door bell rang again.
"There's a lot of ringing at your bell this morning," said Guerchard, under his breath; and hope sprang afresh in him.
Again they stood silent, waiting.
Dieusy opened the door, put in his head, and said, "It's Mademoiselle Kritchnoff."
"Collar her! ... Here's the warrant! ... collar her!" shouted Guerchard, with savage, triumphant joy.
"Never! You shan't touch her! By Heaven, you shan't touch her!" cried Lupin frantically; and he sprang like a tiger at Guerchard.
Guerchard jumped to the other side of the table. "Will you accept, then?" he cried.
Lupin gripped the edge of the table with both hands, and stood panting, grinding his teeth, pale with fury. He stood silent and motionless for perhaps half a minute, gazing at Guerchard with burning, murderous eyes. Then he nodded his head.
"Let Mademoiselle Kritchnoff wait," said Guerchard, with a sigh of deep relief. Dieusy went out of the room.
"Now let us settle exactly how we stand," said Lupin, in a clear, incisive voice. "The bargain is this: If I give you the pictures, the tapestry, the cabinets, the coronet, and the death-certificate of the Duke of Charmerace, you give me your word of honour that Mademoiselle Kritchnoff shall not be touched."
"That's it!" said Guerchard eagerly.
"Once I deliver these things to you, Mademoiselle Kritchnoff passes out of the game."
"Yes," said Guerchard.
"Whatever happens afterwards. If I get back anything—if I escape—she goes scot-free," said Lupin.
"Yes," said Guerchard; and his eyes were shining.
"On your word of honour?" said Lupin.
"On my word of honour," said Guerchard.
"Very well," said Lupin, in a quiet, businesslike voice. "To begin with, here in this pocket-book you'll find all the documents relating to the death of the Duke of Charmerace. In it you will also find the receipt of the Plantin furniture repository at Batignolles for the objects of art which I collected at Gournay-Martin's. I sent them to Batignolles because, in my letters asking the owners of valuables to forward them to me, I always make Batignolles the place to which they are to be sent; therefore I knew that you would never look there. They are all in cases; for, while you were making those valuable inquiries yesterday, my men were putting them into cases. You'll not find the receipt in the name of either the Duke of Charmerace or my own. It is in the name of a respected proprietor of Batignolles, a M. Pierre Servien. But he has lately left that charming suburb, and I do not think he will return to it."
Guerchard almost snatched the pocket-book out of his hand. He verified the documents in it with greedy eyes; and then he put them back in it, and stuffed it into the breast-pocket of his coat.
"And where's the coronet?" he said, in an excited voice.
"You're nearly standing on it," said Lupin.
"It's in that kit-bag at your feet, on the top of the change of clothes in it."
Guerchard snatched up the kit-bag, opened it, and took out the coronet.
"I'm afraid I haven't the case," said Lupin, in a tone of regret. "If you remember, I left it at Gournay-Martin's—in your charge."
Guerchard examined the coronet carefully. He looked at the stones in it; he weighed it in his right hand, and he weighed it in his left.
"Are you sure it's the real one?" said Lupin, in a tone of acute but affected anxiety. "Do not—oh, do not let us have any more of these painful mistakes about it. They are so wearing."
"Yes—yes—this is the real one," said Guerchard, with another deep sigh of relief.
"Well, have you done bleeding me?" said Lupin contemptuously.
"Your arms," said Guerchard quickly.
"They weren't in the bond," said Lupin. "But here you are." And he threw his revolver on the table.
Guerchard picked it up and put it into his pocket. He looked at Lupin as if he could not believe his eyes, gloating over him. Then he said in a deep, triumphant tone:
"And now for the handcuffs!"
CHAPTER XXIII
THE END OF THE DUEL
"The handcuffs?" said Lupin; and his face fell. Then it cleared; and he added lightly, "After all, there's nothing like being careful; and, by Jove, with me you need to be. I might get away yet. What luck it is for you that I'm so soft, so little of a Charmerace, so human! Truly, I can't be much of a man of the world, to be in love like this!"
"Come, come, hold out your hands!" said Guerchard, jingling the handcuffs impatiently.
"I should like to see that child for the last time," said Lupin gently.
"All right," said Guerchard.
"Arsene Lupin—and nabbed by you! If you aren't in luck! Here you are!" said Lupin bitterly; and he held out his wrists.
Guerchard
