the other men were fascinated by the spectacle, he would have a good opportunity to shoot some of them without mercy and make a dash for liberty.
But at the same moment there came to him an odd thought. His friend the jeweller of the Rue de la Paix had not given him a lesson in vain during the previous afternoon.
The barrister suspected—in fact, he was almost sure—that the gems now flaunting their half-revealed glories in the light of the day—for not one of them had undergone the final process peculiar to the diamond-cutter's trade—were not the real stones stolen from Albert Gate, but well fabricated substitutes.
To his acute brain there came an immediate confirmation of his theory. Evidently the diamonds had not been previously in the Turk's possession. The little Frenchman had just delivered them, and this in itself was a strange circumstance in view of the fact that the genuine stones must have been in Paris at least three days.
Brett concentrated all his dramatic faculties in look, voice, and gesture.
"You fools!" he cried. "You have been swindled by a device which a child might suspect. These are not the Sultan's diamonds. These are frauds—cleverly concocted bits of crystal and alum—intended to keep you happy until you return to Constantinople and discover how thoroughly you were deceived."
"You lie!" roared the little Frenchman. "They are genuine."
Brett wanted to punch the diminutive scoundrel heavily in the face, but he restrained himself. Turning with a magnificent assumption of courteousness to Hussein-ul-Mulk, he said—
"Come, I told you you were acting childishly; this proves it. A most outrageous attempt has been made to swindle you, if I may use such a term to persons who confessedly are plotting to rob another. Surely this will convince you that you have nothing to fear from me. I am here as the agent neither of Sultan nor police. It is a simple matter for you to verify my statement. All that is necessary is for one of your party to take any of these alleged diamonds—I would suggest the smallest one so as not to create suspicion—to any jeweller in the district, and he will test it for you immediately, thus proving the truth of my statement. Look here; I will convince you myself."
He took the monster diamond irreverently in his hand before Hussein-ul-Mulk could prevent him and turned to the window. He pressed the stone against the glass and tried to make it cut. It failed. He placed it against his cheek. It was warm. A pure diamond would be icy cold. More than this, a small portion of the composition of which the imitation had been hastily concocted, broke off in his fingers.
"You see," he laughed. "Do you require further proof?"
Even while he spoke the diminutive little Frenchman turned and bolted. One of the Turks drew a revolver and rushed after him, but Hussein-ul-Mulk uttered some authoritative words which prevented the man from firing. The Frenchman was evidently an adept in the art of dodging pursuit. In the passage he ducked suddenly, and threw the Turk heavily to the ground. Then, without further interference, he slipped the latch of the door and slammed it hastily behind him, leaving Brett silently laughing at Hussein-ul-Mulk and his remaining confederate, whilst the gentleman who had been upset was slowly regaining his disturbed gravity.
"Can it be possible that what you say is true?" said Hussein-ul-Mulk, in such piteous accents that Brett was moved to further mirth.
"Surely you do not doubt the evidence?" he said. "Take any of these stones; they will crumble to pieces on the hearth if struck the slightest blow. See, I will pulverise one with my heel."
And he did so, though the amazed and despairing men whom he addressed would have restrained him, for they still could not bring themselves to believe.
"Come, now," he went on "arouse yourselves; and give me the information I want. That is the only way in which you may attain your ends. Of course I cannot help you. It may be that as you have bungled matters so badly, the authorities will stop you and land you all in prison; but that is no concern of mine. At this moment I simply wish to release my friend and proclaim his innocence. For the rest, you must take care of yourselves. You know best who it is that has so thoroughly outwitted you."
Hussein-ul-Mulk was the first to recover his scattered senses.
"We cannot choose but believe you, Mr. Brett," he said. "We are even indebted to you for making this disastrous discovery at such an early date. We paid our agents so highly that we thought their honesty was assured. We find we are mistaken, and consequently we apologise to you for using threats which were unnecessary. We rely on your honour not to incriminate us with the police. All we can tell you is that your friend is not dead, but we do not know his whereabouts."
"Nonsense," cried Brett angrily. "Why do you seek to mislead me in this fashion?"
"Sir," said the Turk, "I am telling you the truth. We believe that Mr. Talbot is a prisoner in London, but we do not know in what locality. My friends here and myself, as you have already surmised, are merely members of a political organisation. It was necessary for us to secure possession of the Imperial diamond and its companions. We spared no expense, nor hesitated at any means that would accomplish our purpose. We have been foiled for the moment. I can tell you nothing else, and I advise you to leave us and forget that such persons exist, for I swear to you by the beard of the Prophet that had events turned out differently you would now be a lifeless corpse in this room, whilst your body would not be discovered for many weeks, as we intended to leave Paris this afternoon as soon as the diamonds came into our possession."
At this moment a thunderous knocking reverberated through the house.
The Turks gazed at each other in affright. None of them moved to open the door. But the knock was not repeated, for the door itself was thrown bodily from its hinges, and the stalwart form of Lord Fairholme, accompanied by two policemen, appeared in the passage.
"Ah," cried Brett, intervening with ready tact, "I had forgotten you, Fairholme. I see you kept your appointment. These are not required," he rattled on pleasantly, turning towards the stern-looking sergents de ville; "I am quite alive and uninjured. My friends here and myself had a few earnest words, but we have settled matters satisfactorily."
The suspicious policemen glanced from the smiling Englishman to the perturbed Turks. At the first sound of danger Hussein-ul-Mulk had closed the case in which lay the spurious diamonds, so these pretentious-looking gems did not excite the curiosity of the men of law.
The senior officer demanded from Lord Fairholme an explanation of the exciting statements which induced them to accompany him, but Brett stepped into the breach.
"It is quite true," he said, "that my friend was anxious on my account. It was even possible these Turkish gentlemen here and myself might have proceeded to extremities, but the affair has ended satisfactorily, and if you will allow me——" He put his hand into his pocket and a slight monetary transaction terminated the incident pleasantly for all parties.
Soon Brett and Fairholme found themselves in the street, and again did the barrister draw in deep and invigorating draughts of Paris air.
"Where now?" said Fairholme.
"Tell me," cried Brett eagerly, "did you notice in which direction the little man ran who left No. 11 about ten minutes ago?"
"Better than that, I heard where he was going to. He was in such a fiendish funk that he paid heed to nobody, but flung himself into a passing cab and yelled, 'Take me to the Cabaret Noir, Boulevard Montmartre.'"
"Good. You are a splendid detective. You have saved me hours of search
