"Oh, Chief, he's not moving!"

"I know ... I know ... and I now see that he has not moved once during the night. And that's what frightens me."

He had to make a real effort in order to step forward. He was now almost touching the bed.

The engineer did not appear to breathe.

This time, Perenna resolutely took hold of his hand.

It was icy cold.

Don Luis at once recovered all his self-possession.

"The window! Open the window!" he cried.

And, when the light flooded the room, he saw the face of Hippolyte Fauville all swollen, stained with brown patches.

"Oh," he said, under his breath, "he's dead!"

"Dash it all! Dash it all!" spluttered the detective sergeant.

For two or three minutes they stood petrified, stupefied, staggered at the sight of this most astonishing and mysterious phenomenon. Then a sudden idea made Perenna start. He flew up the winding staircase, rushed along the gallery, and darted into the attic.

Edmond, Hippolyte Fauville's son, lay stiff and stark on his bed, with a cadaverous face, dead, too.

"Dash it all! Dash it all!" repeated Mazeroux.

Never, perhaps, in the course of his adventurous career, had Perenna experienced such a knockdown blow. It gave him a feeling of extreme lassitude, depriving him of all power of speech or movement. Father and son were dead! They had been killed during that night! A few hours earlier, though the house was watched and every outlet hermetically closed, both had been poisoned by an infernal puncture, even as Inspector Verot was poisoned, even as Cosmo Mornington was poisoned.

"Dash it all!" said Mazeroux once more. "It was not worth troubling about the poor devils and performing such miracles to save them!"

The exclamation conveyed a reproach. Perenna grasped it and admitted:

"You are right, Mazeroux; I was not equal to the job."

"Nor I, Chief."

"You ... you have only been in this business since yesterday evening—"

"Well, so have you, Chief!"

"Yes, I know, since yesterday evening, whereas the others have been working at it for weeks and weeks. But, all the same, these two are dead; and I was there, I, Lupin, was there! The thing has been done under my eyes; and I saw nothing! I saw nothing! How is it possible?"

He uncovered the poor boy's shoulders, showing the mark of a puncture at the top of the arm.

"The same mark—the same mark obviously that we shall find on the father.... The lad does not seem to have suffered, either.... Poor little chap! He did not look very strong.... Never mind, it's a nice face; what a terrible blow for his mother when she learns!"

The detective sergeant wept with anger and pity, while he kept on mumbling:

"Dash it all!... Dash it all!"

"We shall avenge them, eh, Mazeroux?"

"Rather, Chief! Twice over!"

"Once will do, Mazeroux. But it shall be done with a will."

"That I swear it shall!"

"You're right; let's swear. Let us swear that this dead pair shall be avenged. Let us swear not to lay down our arms until the murderers of Hippolyte Fauville and his son are punished as they deserve."

"I swear it as I hope to be saved, Chief."

"Good!" said Perenna. "And now to work. You go and telephone at once to the police office. I am sure that M. Desmalions will approve of your informing him without delay. He takes an immense interest in the case."

"And if the servants come? If Mme. Fauville—?"

"No one will come till we open the doors; and we shan't open them except to the Prefect of Police. It will be for him, afterward, to tell Mme. Fauville that she is a widow and that she has no son. Go! Hurry!"

"One moment, Chief; we are forgetting something that will help us enormously."

"What's that?"

"The little drab-cloth diary in the safe, in which M. Fauville describes the plot against him."

"Why, of course!" said Perenna. "You're right ... especially as he omitted to mix up the letters of the lock last night, and the key is on the bunch which he left lying on the table."

They ran down the stairs.

"Leave this to me," said Mazeroux. "It's more regular that you shouldn't touch the safe."

He took the bunch, moved the glass case, and inserted the key with a feverish emotion which Don Luis felt even more acutely than he did. They were at last about to know the details of the mysterious story. The dead man himself would betray the secret of his murderers.

"Lord, what a time you take!" growled Don Luis.

Mazeroux plunged both hands into the crowd of papers that encumbered the iron shelf.

"Well, Mazeroux, hand it over."

"What?"

"The diary."

"I can't Chief."

"What's that?"

"It's gone."

Don Luis stifled an oath. The drab-cloth diary, which the engineer had placed in the safe before their eyes, had disappeared.

Mazeroux shook his head.

"Dash it all! So they knew about that diary!"

"Of course they did; and they knew plenty of other things besides. We've not seen the end of it with those fellows. There's no time to lose. Ring up!"

Mazeroux did so and soon received the answer that M. Desmalions was coming to the telephone. He waited.

In a few minutes Perenna, who had been walking up and down, examining different objects in the room, came and sat down beside Mazeroux. He seemed thoughtful. He reflected for some time. But then, his eyes falling on the fruit dish, he muttered:

"Hullo! There are only three apples instead of four. Then he ate the fourth."

"Yes," said Mazeroux, "he must have eaten it."

"That's funny," replied Perenna, "for he didn't think them ripe."

He was silent once more, sat leaning his elbows on the table, visibly preoccupied; then, raising his head, he let fall these words:

"The murder was committed before we entered the room, at half-past twelve exactly."

"How do you know, Chief?"

"M. Fauville's murderer or murderers, in touching the things on the table, knocked down the watch which M. Fauville had placed there. They put it back; but the fall had stopped it. And it stopped at half-past twelve."

"Then, Chief, when we settled ourselves here, at two in the morning, it was a corpse that was lying beside us and another over our heads?"

"Yes."

"But how did those devils get in?"

"Through this door, which opens on the garden, and through the gate that opens on the Boulevard Suchet."

"Then they had keys to the locks and bolts?"

"False keys, yes."

"But the policemen watching the house outside?"

"They are still watching it, as that sort watch a house, walking from point to point without thinking that people can slip into a garden while they have their backs turned. That's what took place in coming and going."

Sergeant Mazeroux seemed flabbergasted. The criminals' daring, their skill, the precision of their acts bewildered him.

"They're deuced clever," he said.

"Deuced clever, Mazeroux, as you say; and I foresee a tremendous battle. By Jupiter, with what a vim they set to work!"

The telephone bell rang. Don Luis left Mazeroux to his conversation with the Prefect, and, taking the bunch of keys, easily unfastened the lock and the bolt of the door and went out into the garden, in the hope of there finding some trace that should facilitate his quest.

As on the day before, he saw, through the ivy, two policemen walking between one lamp-post and the next. They did not see him. Moreover, anything that might happen inside the house appeared to be to them a matter of total indifference.

"That's my great mistake," said Perenna to himself. "It doesn't do to entrust a job to people who do not suspect its importance."

His investigations led to the discovery of some traces of footsteps on the gravel, traces not sufficiently plain to enable him to distinguish the shape of the shoes that had left them, yet distinct enough to confirm his supposition. The scoundrels had been that way.

Suddenly he gave a movement of delight. Against the border of the path, among the leaves of a little clump of rhododendrons, he saw something red, the shape of which at once struck him. He stooped. It was an apple, the fourth apple, the one whose absence from the fruit dish he had noticed.

"Excellent!" he said. "Hippolyte Fauville did not eat it. One of them must have carried it away—a fit of appetite, a sudden hunger—and it must have rolled from his hand without his having time to look for it and pick it up."

He took up the fruit and examined it.

"What!" he exclaimed, with a start. "Can it be possible?"

He stood dumfounded, a prey to real excitement, refusing to admit the inadmissible thing which nevertheless presented itself to his eyes with the direct evidence of actuality. Some one had bitten into the apple; into the apple which was too sour to eat. And the teeth had left their mark!

"Is it possible?" repeated Don Luis. "Is it possible that one of them can have been guilty of such an imprudence! The apple must have fallen without his knowing ... or he must have been unable to find it in the dark."

He could not get over his surprise. He cast about for plausible explanations. But the fact was there before him. Two rows of teeth, cutting through the thin red peel, had left their regular, semicircular bite clearly in the pulp of the fruit. They were clearly marked on the top, while the lower row had melted into a single curved line.

"The teeth of the tiger!" murmured Perenna, who could not remove his eyes from that double imprint. "The teeth of the tiger! The teeth that had already left their mark on Inspector Verot's piece of chocolate! What a coincidence! It can hardly be fortuitous. Must we not take it as certain that the same person bit into this apple and into that cake of chocolate which Inspector Verot brought to the police office as an incontestable piece of evidence?"

He hesitated a second. Should he keep this evidence for himself, for the personal inquiry which he meant to conduct? Or should he surrender it to the investigations of the police? But the touch of the object filled him with such repugnance, with such a sense of physical discomfort, that he flung away the apple and sent it rolling under the leaves of the shrubs.

And he repeated to himself:

"The teeth of the tiger! The teeth of the wild beast!"

He locked the garden door behind him, bolted it, put back the keys on the table and said to Mazeroux:

"Have you spoken to the Chief of Police?"

"Yes."

"Is he coming?"

"Yes."

"Didn't he order you to telephone for the commissary of police?"

"No."

"That means that he wants to see everything by himself. So much the better. But the detective office? The public prosecutor?"

"He's told them."

"What's the matter with you, Alexandre? I have to drag your answers out of you. Well, what is it? You're looking at me very queerly. What's up?"

"Nothing."

"That's all right. I expect this business has turned your head. And no wonder.... The Prefect won't enjoy himself, either, ... especially as he put his faith in me a bit light-heartedly and will be called upon to give an explanation of my presence here. By the way, it's much better that you should take upon yourself the responsibility for all that we have done. Don't you agree? Besides, it'll do you all the good in the world.

"Put yourself forward, flatly; suppress me as much as you can; and, above all—I don't suppose that you will have any objection to this little detail—don't be such a fool as to say that you went to sleep for a single second, last night, in the passage. First of all, you'd only be blamed for it. And then ... well, that's understood, eh? So we have only to say good-bye.

"If the Prefect wants me, as I expect he will, telephone to my address, Place du Palais-Bourbon. I shall be there. Good-bye. It is not necessary for me to assist at the inquiry; my presence would be out of place. Good-bye, old chap."

He turned toward the door of the passage.

"Half a moment!" cried Mazeroux.

"Half a moment?... What do you mean?"

The detective sergeant had flung himself between him and the door and was blocking his way.

"Yes, half a moment ... I am not of your opinion. It's far better that you should wait until the Prefect comes."

"But I don't care a hang about your opinion!"

"May be; but you shan't pass."

"What! Why, Alexandre, you must be ill!"

"Look here, Chief," said Mazeroux feebly. "What can it matter to you? It's only natural that the Prefect should wish to speak to you."

"Ah, it's the Prefect who wishes, is it?... Well, my lad, you can tell him that I am not at his orders, that I am at nobody's orders, and that, if the President of the Republic, if Napoleon I himself were to bar my way ... Besides, rats! Enough said. Get out of the road!"

"You shall not pass!" declared Mazeroux, in a resolute tone, extending his arms.

"Well, I like that!"

"You shall not pass."

"Alexandre, just count ten."

"A hundred, if you like, but you shall not...."

"Oh, blow your catchwords! Get out of this."

He seized Mazeroux by both shoulders, made him spin round on his heels and, with a push, sent him floundering over the sofa. Then he opened the door.

"Halt, or I fire!"

It was Mazeroux, who had scrambled to his feet and now stood with his revolver in his hand and a determined expression on his face.

Don Luis stopped in amazement. The threat was absolutely indifferent to him, and the barrel of that revolver aimed at him left him as cold as could be. But by what prodigy did Mazeroux, his former accomplice, his ardent disciple, his devoted servant, by what prodigy did Mazeroux dare to act as he was doing?

Perenna went up to him and pressed gently on the detective's outstretched arm.

"Prefect's orders?" he asked.

"Yes," muttered the sergeant, uncomfortably.

"Orders to keep me here until he comes?"

"Yes."

"And if I betrayed an intention of leaving, to prevent me?"

"Yes."

"By every means?"

"Yes."

"Even by putting a bullet through my skin?"

"Yes."

Perenna reflected; and then, in a serious voice:

"Would you have fired, Mazeroux?"

The sergeant lowered his head and said faintly:

"Yes, Chief."

Perenna looked at him without anger, with a glance of affectionate sympathy; and it was an absorbing sight for him to see his former companion dominated by such a sense of discipline and duty. Nothing was able to prevail against that sense, not even the fierce admiration, the almost animal attachment which Mazeroux retained for his master.

"I'm not angry, Mazeroux. In fact, I approve. Only you must tell me the reason why the Prefect of Police—"

The detective did not reply, but his eyes wore an expression of such sadness that Don Luis started, suddenly understanding.

"No," he cried, "no!... It's absurd ... he can't have thought that!... And you, Mazeroux, do you believe me guilty?"

"Oh, I, Chief, am as sure of you as I am of myself!... You don't take life!... But, all the same, there are things ... coincidences—"

"Things ... coincidences ..." repeated Don Luis slowly.

He remained pensive; and, in a low voice, he said:

"Yes, after all, there's truth in what you say.... Yes, it all fits in.... Why didn't I think of it?... My relations with Cosmo Mornington, my arrival in Paris in time for the reading of the will, my insisting on spending the night here, the fact that the death of the two Fauvilles undoubtedly gives me the millions.... And then ... and then ... why, he's absolutely right, your Prefect of Police!... All the more so as.... Well, there, I'm a goner!"

"Come, come, Chief!"

"A dead-goner, old chap; you just get that into your head. Not as Arsene Lupin, ex-burglar, ex-convict, ex-anything you please—I'm unattackable on that ground—but as Don Luis Perenna, respectable man, residuary legatee, and the rest of it. And it's too stupid! For, after all, who will find the murderers of Cosmo, Verot, and the two Fauvilles, if they go clapping me into jail?"

"Come, come, Chief—"

"Shut up! ... Listen!"

A motor car was stopping on the boulevard, followed by another. It was evidently the Prefect and the magistrates from the public prosecutor's office.

Don Luis took Mazeroux by the arm.

"There's only one way out of it, Alexandre! Don't say you went to sleep."

"I must, Chief."

"You silly ass!" growled Don Luis. "How is it possible to be such an ass! It's enough to disgust one with honesty. What am I to do, then?"

"Discover the culprit, Chief."

"What! ... What are you talking about?"

Mazeroux, in his turn, took him by the arm and, clutching him with a sort of despair, said, in a voice choked with tears:

"Discover the culprit, Chief. If not, you're done for ... that's certain ... the Prefect told me so. ... The police want a culprit ... they want him this evening.... One has got to be found.... It's up to you to find him."

"What you have, Alexandre, is a merry wit."

"It's child's play for you, Chief. You have only to set your mind to it."

"But there's not the least clue, you ass!"

"You'll find one ... you must ... I entreat you, hand them over somebody.... It would be more than I could bear if you were arrested. You, the chief, accused of murder! No, no.... I entreat you, discover the criminal and hand him over.... You have the whole day to do it in...and Lupin has done greater things than that!"

He was stammering, weeping, wringing his hands, grimacing with every feature of his comic face. And it was really touching, this grief, this dismay at the approach of the danger that threatened his master.

M. Desmalions's voice was heard in the hall, through the curtain that closed the passage. A third motor car stopped on the boulevard, and a fourth, both doubtless laden with policemen.

The house was surrounded, besieged.

Perenna was silent.

Beside him, anxious-faced, Mazeroux seemed to be imploring him.

A few seconds elapsed.

Then Perenna declared, deliberately:

"Looking at things all round, Alexandre, I admit that you have seen the position clearly and that your fears are fully justified. If I do not manage to hand over the murderer or murderers of Hippolyte Fauville and his son to the police in a few hours from now, it is I, Don Luis Perenna, who will be lodged in durance vile on the evening of this Thursday, the first of April."



CHAPTER FOUR

THE CLOUDED TURQUOISE

It was about nine o'clock in the morning when the Prefect of Police entered the study in which the incomprehensible tragedy of that double murder had been enacted.

He did not even bow to Don Luis; and the magistrates who accompanied him might have thought that Don Luis was merely an assistant of Sergeant Mazeroux, if the chief detective had not made it his business to tell them, in a few words, the part played by the stranger.

M. Desmalions briefly examined the two corpses and received a rapid explanation from Mazeroux. Then, returning to the hall, he went up to a drawing-room on the first floor, where Mme. Fauville, who had been informed of his visit, joined him almost at once.

Perenna, who had not stirred from the passage, slipped into the hall himself. The servants of the house, who by this time had heard of the murder, were crossing it in every direction. He went down the few stairs leading to a ground-floor landing, on which the front door opened.

There were two men there, of whom one said:

"You can't pass."

"But—"

"You can't pass: those are our orders."

"Your orders? Who gave them?"

"The Prefect himself."

"No luck," said Perenna, laughing. "I have been up all night and I am starving. Is there no way of getting something to eat?"

The two policemen exchanged glances and one of them beckoned to Silvestre and spoke to him. Silvestre went toward the dining-room, and returned with a horseshoe roll.

"Good," thought Don Luis, after thanking him. "This settles it. I'm nabbed. That's what I wanted to know. But M. Desmalions is deficient in logic. For, if it's Arsene Lupin whom he means to detain here, all these worthy plain-clothesmen are hardly enough; and, if it's Don Luis Perenna, they are superfluous, because the flight of Master Perenna would deprive Master Perenna of every chance of seeing the colour of my poor Cosmo's shekels. Having said which, I will take a chair."

He resumed his seat in the passage and awaited events.

Through the open door of the study he saw the magistrates pursuing their investigations. The divisional surgeon made a first examination of the two bodies and at once recognized the same symptoms of poisoning which he himself had perceived, the evening before, on the corpse of Inspector Verot.

Next, the detectives took up the bodies and carried them to the adjoining bedrooms which the father and son formerly occupied on the second floor of the house.

The Prefect of Police then came downstairs; and Don Luis heard him say to the magistrates:

"Poor woman! She refused to understand.... When at last she understood, she fell to the ground in a dead faint. Only think, her husband and her son at one blow!... Poor thing!"

From that moment Perenna heard and saw nothing. The door was shut. The Prefect must afterward have given some order through the outside, through the communication with the front door offered by the garden, for the two detectives came and took up their positions in the hall, at the entrance to the passage, on the right and left of the dividing curtain.

"One thing's certain," thought Don Luis. "My shares are not booming. What a state Alexandre must be in! Oh, what a state!"

At twelve o'clock Silvestre brought him some food on a tray.

And the long and painful wait began anew.

In the study and in the house, the inquiry, which had been adjourned for lunch, was resumed. Perenna heard footsteps and the sound of voices on every side. At last, feeling tired and bored, he leaned back in his chair and fell asleep.

* * * * *

It was four o'clock when Sergeant Mazeroux came and woke him. As he led him to the study, Mazeroux whispered:

"Well, have you discovered him?"

"Whom?"

"The murderer."

"Of course!" said Perenna. "It's as easy as shelling peas!"

"That's a good thing!" said Mazeroux, greatly relieved and failing to see the joke. "But for that, as you saw for yourself, you would have been done for."

Don Luis entered. In the room were the public prosecutor, the examining magistrate, the chief detective, the local commissary of police, two inspectors, and three constables in uniform.

Outside, on the Boulevard Suchet, shouts were raised; and, when the commissary and his three policemen went out, by the Prefect's orders, to listen to the crowd, the hoarse voice of a newsboy was heard shouting:

"The double murder on the Boulevard Suchet! Full particulars of the death of Inspector Verot! The police at a loss!—"

Then, when the door was closed, all was silent.

"Mazeroux was quite right," thought Don Luis. "It's I or the other one: that's clear. Unless the words that will be spoken and the facts that will come to light in the course of this examination supply me with some clue that will enable me to give them the name of that mysterious X, they'll surrender me this evening for the people to batten on. Attention, Lupin, old chap, the great game is about to commence!"

He felt that thrill of delight which always ran through him at the approach of the great struggles. This one, indeed, might be numbered among the most terrible that he had yet sustained.

He knew the Prefect's reputation, his experience, his tenacity, and the keen pleasure which he took in conducting important inquiries and in personally pushing them to a conclusion before placing them in the magistrate's hands; and he also knew all the professional qualities of the chief detective, and all the subtlety, all the penetrating logic possessed by the examining magistrate.

The Prefect of Police himself directed the attack. He did so in a straightforward fashion, without beating about the bush, and in a rather harsh voice, which had lost its former tone of sympathy for Don Luis. His attitude also was more formal and lacked that geniality which had struck Don Luis on the previous day.

"Monsieur," he said, "circumstances having brought about that, as the residuary legatee and representative of Mr. Cosmo Mornington, you spent the night on this ground floor while a double murder was being committed here, we wish to receive your detailed evidence as to the different incidents that occurred last night."

"In other words, Monsieur le Prefet," said Perenna, replying directly to the attack, "in other words, circumstances having brought about that you authorized me to spend the night here, you would like to know if my evidence corresponds at all points with that of Sergeant Mazeroux?"

"Yes."

"Meaning that the part played by myself strikes you as suspicious?"

M. Desmalions hesitated. His eyes met Don Luis's eyes; and he was visibly impressed by the other's frank glance. Nevertheless he replied, plainly and bluntly:

"It is not for you to ask me questions, Monsieur."

Don Luis bowed.

"I am at your orders, Monsieur le Prefet."

"Please tell us what you know."

Don Luis thereupon gave a minute account of events, after which M. Desmalions reflected for a few moments and said:

"There is one point on which we want to be informed. When you entered this room at half-past two this morning and sat down beside M. Fauville, was there nothing to tell you that he was dead?"

"Nothing, Monsieur le Prefet. Otherwise, Sergeant Mazeroux and I would have given the alarm."

"Was the garden door shut?"

"It must have been, as we had to unlock it at seven o'clock."

"With what?"

"With the key on the bunch."

"But how could the murderers, coming from the outside, have opened it?"

"With false keys."

"Have you a proof which allows you to suppose that it was opened with false keys?"

"No, Monsieur le Prefet."

"Therefore, until we have proofs to the contrary, we are bound to believe that it was not opened from the outside, and that the criminal was inside the house."

"But, Monsieur le Prefet, there was no one here but Sergeant Mazeroux and myself!"

There was a silence, a pause whose meaning admitted of no doubt. M. Desmalions's next words gave it an even more precise value.

"You did not sleep during the night?"

"Yes, toward the end."

"You did not sleep before, while you were in the passage?"

"No."

"And Sergeant Mazeroux?"

Don Luis remained undecided for a moment; but how could he hope that the honest and scrupulous Mazeroux had disobeyed the dictates of his conscience?

He replied:

"Sergeant Mazeroux went to sleep in his chair and did not wake until Mme. Fauville returned, two hours later."

There was a fresh silence, which evidently meant:

"So, during the two hours when Sergeant Mazeroux was asleep, it was physically possible for you to open the door and kill the two Fauvilles."

The examination was taking the course which Perenna had foreseen; and the circle was drawing closer and closer around him. His adversary was conducting the contest with a logic and vigour which he admired without reserve.

"By Jove!" he thought. "How difficult it is to defend one's self when one is innocent. There's my right wing and my left wing driven in. Will my centre be able to stand the assault?"

M. Desmalions, after a whispered colloquy with the examining magistrate, resumed his questions in these terms:

"Yesterday evening, when M. Fauville opened his safe in your presence and the sergeant's, what was in the safe?"

"A heap of papers, on one of the shelves; and, among those papers, the diary in drab cloth which has since disappeared."

"You did not touch those papers?"

"Neither the papers nor the safe, Monsieur le Prefet. Sergeant Mazeroux must have told you that he made me stand aside, to insure the regularity of the inquiry."

"So you never came into the slightest contact with the safe?"

"Not the slightest."

M. Desmalions looked at the examining magistrate and nodded his head. Had Perenna been able to doubt that a trap was being laid for him, a glance at Mazeroux would have told him all about it. Mazeroux was ashen gray.

Meanwhile, M. Desmalions continued:

"You have taken part in inquiries, Monsieur, in police inquiries. Therefore, in putting my next question to you, I consider that I am addressing it to a tried detective."

"I will answer your question, Monsieur le Prefet, to the best of my ability."

"Here it is, then: Supposing that there were at this moment in the safe an object of some kind, a jewel, let us say, a diamond out of a tie pin, and that this diamond had come from a tie pin which belonged to somebody whom we knew, somebody who had spent the night in this house, what would you think of the coincidence?"

"There we are," said Perenna to himself. "There's the trap. It's clear that they've found something in the safe, and next, that they imagine that this something belongs to me. Good! But, in that case, we must presume, as I have not touched the safe, that the thing was taken from me and put in the safe to compromise me. But I did not have a finger in this pie until yesterday; and it is impossible that, during last night, when I saw nobody, any one can have had time to prepare and contrive such a determined plot against me. So—"

The Prefect of Police interrupted this silent monologue by repeating:

"What would be your opinion?"

"There would be an undeniable connection between that person's presence in the house and the two crimes that had been committed."

"Consequently, we should have the right at least to suspect the person?"

"Yes."

"That is your view?"

"Decidedly."

M. Desmalions produced a piece of tissue paper from his pocket and took from it a little blue stone, which he displayed.

"Here is a turquoise which we found in the safe. It belongs, without a shadow of a doubt, to the ring which you are wearing on your finger."

Don Luis was seized with a fit of rage. He half grated, through his clenched teeth:

"Oh, the rascals! How clever they are! But no, I can't believe—"

He looked at his ring, which was formed of a large, clouded, dead turquoise, surrounded by a circle of small, irregular turquoises, also of a very pale blue. One of these was missing; and the one which M. Desmalions had in his hand fitted the place exactly.

"What do you say?" asked M. Desmalions.

"I say that this turquoise belongs to my ring, which was given me by Cosmo Mornington on the first occasion that I saved his life."

"So we are agreed?"

"Yes, Monsieur le Prefet, we are agreed."

Don Luis Perenna began to walk across the room, reflecting. The movement which the two detectives made toward the two doors told him that his arrest was provided for. A word from M. Desmalions, and Sergeant Mazeroux would be forced to take his chief by the collar.

Don Luis once more gave a glance toward his former accomplice. Mazeroux made a gesture of entreaty, as though to say:

"Well, what are you waiting for? Why don't you give up the criminal? Quick, it's time!"

Don Luis smiled.

"What's the matter?" asked the Prefect, in a tone that now entirely lacked the sort of involuntary politeness which he had shown since the commencement of the examination.

"The matter? The matter?—"

Perenna seized a chair by the back, spun it round and sat down upon it, with the simple remark:

"Let's talk!"

And this was said in such a way and the movement executed with so much decision that the Prefect muttered, as though wavering:

"I don't quite see—"

"You soon will, Monsieur le Prefet."

And, speaking in a slow voice, laying stress on every syllable that he uttered, he began:

"Monsieur le Prefet, the position is as clear as daylight. Yesterday evening you gave me an authorization which involves your responsibility most gravely. The result is that what you now want, at all costs and without delay, is a culprit. And that culprit is to be myself. By way of incriminating evidence, you have the fact of my presence here, the fact the door was locked on the inside, the fact that Sergeant Mazeroux was asleep while the crime was committed, and the fact of the discovery of the turquoise in the safe. All this is crushing, I admit. Added to it," he continued, "we have the terrible presumption that I had every interest in the removal of M. Fauville and his son, inasmuch as, if there is no heir of Cosmo Mornington's in existence, I come into a hundred million francs. Exactly. There is therefore nothing for me to do, Monsieur le Prefet, but to go with you to the lockup or else—"

"Or else what?"

"Or else hand over to you the criminal, the real criminal."

The Prefect of Police smiled and took out his watch.

"I'm waiting," he said.

"It will take me just an hour, Monsieur le Prefet, and no more, if you give me every latitude. And the search of the truth, it seems to me, is worth a little patience."

"I'm waiting," repeated M. Desmalions.

"Sergeant Mazeroux, please tell Silvestre, the manservant, that Monsieur le Prefet wishes to see him."

Upon a sign from M. Desmalions, Mazeroux went out.

Don Luis explained his motive.

"Monsieur le Prefet, whereas the discovery of the turquoise constitutes in your eyes an extremely serious proof against me, to me it is a revelation of the highest importance. I will tell you why. That turquoise must have fallen from my ring last evening and rolled on the carpet.

"Now there are only four persons," he continued, "who can have noticed this fall when it happened, picked up the turquoise and, in order to compromise the new adversary that I was, slipped it into the safe. The first of those four persons is one of your detectives, Sergeant Mazeroux, of whom we will not speak. The second is dead: I refer to M. Fauville. We will not speak of him. The third is Silvestre, the manservant. I should like to say a few words to him. I shall not take long."

Silvestre's examination, in fact, was soon over. He was able to prove that, pending the return of Mme. Fauville, for whom he had to open the door, he had not left the kitchen, where he was playing at cards with the lady's maid and another manservant.

"Very well," said Perenna. "One word more. You must have read in this morning's papers of the death of Inspector Verot and seen his portrait."

"Yes."

"Do you know Inspector Verot?"

"No."

"Still, it is probable that he came here yesterday, during the day."

"I can't say," replied the servant. "M. Fauville used to receive many visitors through the garden and let them in himself."

"You have no more evidence to give?"

"No."

"Please tell Mme. Fauville that Monsieur le Prefet would be very much obliged if he could have a word with her."

Silvestre left the room.

The examining magistrate and the public prosecutor had drawn nearer in astonishment.

The Prefect exclaimed:

"What, Monsieur! You don't mean to pretend that Mme. Fauville is mixed up—"

"Monsieur le Prefet, Mme. Fauville is the fourth person who may have seen the turquoise drop out of my ring."

"And what then? Have we the right, in the absence of any real proof, to suppose that a woman can kill her husband, that a mother can poison her son?"

"I am supposing nothing, Monsieur le Prefet."

"Then—?"

Don Luis made no reply. M. Desmalions did not conceal his irritation. However, he said:

"Very well; but I order you most positively to remain silent. What questions am I to put to Mme. Fauville?"

"One only, Monsieur le Prefet: ask Mme. Fauville if she knows any one, apart from her husband, who is descended from the sisters Roussel."

"Why that question?"

"Because, if that descendant exists, it is not I who will inherit the millions, but he; and then it will be he and not I who would be interested in the removal of M. Fauville and his son."

"Of course, of course," muttered M. Desmalions. "But even so, this new trail—"

Mme. Fauville entered as he was speaking. Her face remained charming and pretty in spite of the tears that had reddened her eyelids and impaired the freshness of her cheeks. But her eyes expressed the scare of terror; and the obsession of the tragedy imparted to all her attractive personality, to her gait and to her movements, something feverish and spasmodic that was painful to look upon.

"Pray sit down, Madame," said the Prefect, speaking with the height of deference, "and forgive me for inflicting any additional emotion upon you. But time is precious; and we must do everything to make sure that the two victims whose loss you are mourning shall be avenged without delay."

Tears were still streaming from her beautiful eyes; and, with a sob, she stammered:

"If the police need me, Monsieur le Prefet—"

"Yes, it is a question of obtaining a few particulars. Your husband's mother is dead, is she not?"

"Yes, Monsieur le Prefet."

"Am I correct in saying that she came from Saint-Etienne and that her maiden name was Roussel?"

"Yes."

"Elizabeth Roussel?"

"Yes."

"Had your husband any brothers or sisters?"

"No."

"Therefore there is no descendant of Elizabeth Roussel living?"

"No."

"Very well. But Elizabeth Roussel had two sisters, did she not?"

"Yes."

"Ermeline Roussel, the elder, went abroad and was not heard of again. The other, the younger—"

"The other was called Armande Roussel. She was my mother."

"Eh? What do you say?"

"I said my mother's maiden name was Armande Roussel, and I married my cousin, the son of Elizabeth Roussel."

The statement had the effect of a thunderclap. So, upon the death of Hippolyte Fauville and his son Edmond, the direct descendants of the eldest sister, Cosmo Mornington's inheritance passed to the other branch, that of Armande Roussel; and this branch was represented so far by Mme. Fauville!

The Prefect of Police and the examining magistrate exchanged glances and both instinctively turned toward Don Luis Perenna, who did not move a muscle.

"Have you no brother or sister, Madame?" asked the Prefect.

"No, Monsieur le Prefet, I am the only one."

The only one! In other words, now that her husband and son were dead, Cosmo Mornington's millions reverted absolutely and undeniably to her, to her alone.

Meanwhile, a hideous idea weighed like a nightmare upon the magistrates and they could not rid themselves of it: the woman sitting before them was the mother of Edmond Fauville. M. Desmalions had his eyes on Don Luis Perenna, who wrote a few words on a card and handed it to the Prefect.

M. Desmalions, who was gradually resuming toward Don Luis his courteous attitude of the day before, read it, reflected a moment, and put this question to Mme. Fauville:

"What was your son Edmond's age?"

"Seventeen."

"You look so young—"

"Edmond was not my son, but my stepson, the son of my husband by his first wife, who died,"

"Ah! So Edmond Fauville—" muttered the Prefect, without finishing his sentence.

In two minutes the whole situation had changed. In the eyes of the magistrates, Mme. Fauville was no longer the widow and mother who must on no account be attacked. She had suddenly become a woman whom circumstances compelled them to cross-examine. However prejudiced they might be in her favour, however charmed by the seductive qualities of her beauty, they were inevitably bound to ask themselves, whether for some reason or other, for instance, in order to be alone in the enjoyment of the enormous fortune, she had not had the madness to kill her husband and to kill the boy who was only her husband's son. In any case, the question was there, calling for a solution.

The Prefect of Police continued:

"Do you know this turquoise?"

She took the stone which he held out to her and examined it without the least sign of confusion.

"No," she said. "I have an old-fashioned turquoise necklace, which I never wear, but the stones are larger and none of them has this irregular shape."

"We found this one in the safe," said M. Desmalions. "It forms part of a ring belonging to a person whom we know."

"Well," she said eagerly, "you must find that person."

"He is here," said the Prefect, pointing to Don Luis, who had been standing some way off and who had not been noticed by Mme. Fauville.

She started at the sight of Perenna and cried, very excitedly:

"But that gentleman was here yesterday evening! He was talking to my husband—and so was that other gentleman," she said, referring to Sergeant Mazeroux. "You must question them, find out why they were here. You understand that, if the turquoise belonged to one of them—"

The insinuation was direct, but clumsy; and it lent the greatest weight to Perenna's unspoken argument:

"The turquoise was picked up by some one who saw me yesterday and who wishes to compromise me. Apart from M. Fauville and the detective sergeant, only two people saw me: Silvestre, the manservant, and Mme. Fauville. Consequently, as Silvestre is outside the question, I accuse Mme. Fauville of putting the turquoise in the safe."

M. Desmalions asked:

"Will you let me see the necklace, Madame?"

"Certainly. It is with my other jewels, in my wardrobe. I will go for it."

"Pray don't trouble, Madame. Does your maid know the necklace?"

"Quite well."

"In that case, Sergeant Mazeroux will tell her what is wanted."

* * * * *

Not a word was spoken during the few minutes for which Mazeroux was absent. Mme. Fauville seemed absorbed in her grief. M. Desmalions kept his eyes fixed on her.

The sergeant returned, carrying a very large box containing a number of jewel-cases and loose ornaments.

M. Desmalions found the necklace, examined it, and realized, in fact, that the stones did not resemble the turquoise and that none of them was missing. But, on separating two jewel cases in order to take out a tiara which also contained blue stones, he made a gesture of surprise.

"What are these two keys?" he asked, pointing to two keys identical in shape and size with those which opened the lock and the bolt of the garden door.

Mme. Fauville remained very calm. Not a muscle of her face moved. Nothing pointed to the least perturbation on account of this discovery. She merely said:

"I don't know. They have been there a long time."

"Mazeroux," said M. Desmalions, "try them on that door."

Mazeroux did so. The door opened.

"Yes," said Mme. Fauville. "I remember now, my husband gave them to me. They were duplicates of his own keys—"

The words were uttered in the most natural tone and as though the speaker did not even suspect the terrible charge that was forming against her.

And nothing was more agonizing than this tranquillity. Was it a sign of absolute innocence, or the infernal craft of a criminal whom nothing is able to stir? Did she realize nothing of the tragedy which was taking place and of which she was the unconscious heroine? Or did she guess the terrible accusation which was gradually closing in upon her on every side and which threatened her with the most awful danger? But, in that case, how could she have been guilty of the extraordinary blunder of keeping those two keys?

A series of questions suggested itself to the minds of all those present. The Prefect of Police put them as follows:

"You were out, Madame, were you not, when the murders were committed?"

"Yes."

"You were at the opera?"

"Yes; and I went on to a party at the house of one of my friends, Mme. d'Ersingen."

"Did your chauffeur drive you?"

"To the opera, yes. But I sent him back to his garage; and he came to fetch me at the party."

"I see," said M. Desmalions. "But how did you go from the opera to Mme. d'Ersingen's?"

For the first time, Mme. Fauville seemed to understand that she was the victim of a regular cross-examination; and her look and attitude betrayed a certain uneasiness. She replied:

"I took a motor cab."

"In the street?"

"On the Place de l'Opera."

"At twelve o'clock, therefore?"

"No, at half-past eleven: I left before the opera was over."

"You were in a hurry to get to your friend's?"

"Yes ... or rather—"

She stopped; her cheeks were scarlet; her lips and chin trembled; and she asked:

"Why do you ask me all these questions?"

"They are necessary, Madame. They may throw a light on what we want to know. I beg you, therefore, to answer them. At what time did you reach your friend's house?"

"I hardly know. I did not notice the time."

"Did you go straight there?"

"Almost."

"How do you mean, almost?"

"I had a little headache and told the driver to go up the Champs Elysees and the Avenue du Bois—very slowly—and then down the Champs Elysees again—"

She was becoming more and more embarrassed. Her voice grew indistinct. She lowered her head and was silent.

Certainly her silence contained no confession, and there was nothing entitling any one to believe that her dejection was other than a consequence of her grief. But yet she seemed so weary as to give the impression that, feeling herself lost, she was giving up the fight. And it was almost a feeling of pity that was entertained for this woman against whom all the circumstances seemed to be conspiring, and who defended herself so badly that her cross-examiner hesitated to press her yet further.

M. Desmalions, in fact, wore an irresolute air, as if the victory had been too easy, and as if he had some scruple about pursuing it.

Mechanically he observed Perenna, who passed him a slip of paper, saying:

"Mme. d'Ersingen's telephone number."

M. Desmalions murmured:

"Yes, true, they may know—"

And, taking down the receiver, he asked for number 325.04. He was connected at once and continued:

"Who is that speaking?... The butler? Ah! Is Mme. d'Ersingen at home?... No?... Or Monsieur?... Not he, either?... Never mind, you can tell me what I want to know. I am M. Desmalions, the Prefect of Police, and I need certain information. At what time did Mme. Fauville come last night?... What do you say?... Are you sure?... At two o'clock in the morning?... Not before?... And she went away?... In ten minutes time?... Good ... But you're certain you are not mistaken about the time when she arrived? I must know this positively: it is most important.... You say it was two o'clock in the morning? Two o'clock in the morning?... Very well.... Thank you."

When M. Desmalions turned round, he saw Mme. Fauville standing beside him and looking at him with an expression of mad anguish. And one and the same idea occurred to the mind of all the onlookers. They were in the presence either of an absolutely innocent woman or else of an exceptional actress whose face lent itself to the most perfect simulation of innocence.

"What do you want?" she stammered. "What does this mean? Explain yourself!"

Then M. Desmalions asked simply:

"What were you doing last night between half-past eleven in the evening and two o'clock in the morning?"

It was a terrifying question at the stage which the examination had reached, a fatal question implying:

"If you cannot give us an exact and strict account of the way in which you employed your time while the crime was being committed, we have the right to conclude that you were not alien to the murder of your husband and stepson—"

She understood it in this sense and staggered on her feet, moaning:

"It's horrible!... horrible!"

The Prefect repeated:

"What were you doing? The question must be quite easy to answer."

"Oh," she cried, in the same piteous tone, "how can you believe!... Oh, no, no, it's not possible! How can you believe!"

"I believe nothing yet," he said. "Besides, you can establish the truth with a single word."

It seemed, from the movement of her lips and the sudden gesture of resolution that shook her frame, as though she were about to speak that word. But all at once she appeared stupefied and dumfounded, pronounced a few unintelligible syllables, and fell huddled into a chair, sobbing convulsively and uttering cries of despair.

It was tantamount to a confession. At the very least, it was a confession of her inability to supply the plausible explanation which would have put an end to the discussion.

The Prefect of Police moved away from her and spoke in a low voice to the examining magistrate and the public prosecutor. Perenna and Sergeant Mazeroux were left alone together, side by side.

Mazeroux whispered:

"What did I tell you? I knew you would find out! Oh, what a man you are! The way you managed!"

He was beaming at the thought that the chief was clear of the matter and that he had no more crows to pluck with his, Mazeroux's, superiors, whom he revered almost as much as he did the chief. Everybody was now agreed; they were "friends all round"; and Mazeroux was choking with delight.

"They'll lock her up, eh?"

"No," said Perenna. "There's not enough 'hold' on her for them to issue a warrant."

"What!" growled Mazeroux indignantly. "Not enough hold? I hope, in any case, that you won't let her go. She made no bones, you know, about attacking you! Come, Chief, polish her off, a she-devil like that!"

Don Luis remained pensive. He was thinking of the unheard-of coincidences, the accumulation of facts that bore down on Mme. Fauville from every side. And the decisive proof which would join all these different facts together and give to the accusation the grounds which it still lacked was one which Perenna was able to supply. This was the marks of the teeth in the apple hidden among the shrubs in the garden. To the police these would be as good as any fingerprint, all the more as they could compare the marks with those on the cake of chocolate.

Nevertheless, he hesitated; and, concentrating his anxious attention, he watched, with mingled feelings of pity and repulsion, that woman who, to all seeming, had killed her husband and her husband's son. Was he to give her the finishing stroke? Had he the right to play the part of judge? And supposing he were wrong?

* * * * *

Meantime, M. Desmalions had walked up to him and, while pretending to speak to Mazeroux, was really asking Perenna:

"What do you think of it?"

Mazeroux shook his head. Perenna replied:

"I think, Monsieur le Prefet, that, if this woman is guilty, she is defending herself, for all her cleverness, with inconceivable lack of skill."

"Meaning—?"

"Meaning that she was doubtless only a tool in the hands of an accomplice."

"An accomplice?"

"Remember, Monsieur le Prefet, her husband's exclamation in your office yesterday: 'Oh, the scoundrels! the scoundrels!' There is, therefore, at least one accomplice, who perhaps is the same as the man who was present, as Sergeant Mazeroux must have told you, in the Cafe du Pont-Neuf when Inspector Verot was last there: a man with a reddish-brown beard, carrying an ebony walking-stick with a silver handle. So that—"

"So that," said M. Desmalions, completing the sentence, "by arresting Mme. Fauville to-day, merely on suspicion, we have a chance of laying our hands on the accomplice."

Perenna did not reply. The Prefect continued, thoughtfully:

"Arrest her ... arrest her.... We should need a proof for that.... Did you receive no clue?"

"None at all, Monsieur le Prefet. True, my search was only summary."

"But ours was most minute. We have been through every corner of the room."

"And the garden, Monsieur le Prefet?"

"The garden also."

"With the same care?"

"Perhaps not.... But I think—"

"I think, on the contrary, Monsieur le Prefet, that, as the murderers passed through the garden in coming and going, there might be a chance—"

"Mazeroux," said M. Desmalions, "go outside and make a more thorough inspection."

The sergeant went out. Perenna, who was once more standing at one side, heard the Prefect of Police repeating to the examining magistrate:

"Ah, if we only had a proof, just one! The woman is evidently guilty. The presumption against her is too great! ... And then there are Cosmo Mornington's millions.... But, on the other hand, look at her ... look at all the honesty in that pretty face of hers, look at all the sincerity of her grief."

She was still crying, with fitful sobs and starts of indignant protest that made her clench her fists. At one moment she took her tear-soaked handkerchief, bit it with her teeth and tore it, after the manner of certain actresses.

Perenna saw those beautiful white teeth, a little wide, moist and gleaming, rending the dainty cambric. And he thought of the marks of teeth on the apple. And he was seized with an extreme longing to know the truth. Was it the same pair of jaws that had left its impress in the pulp of the fruit?

Mazeroux returned. M. Desmalions moved briskly toward the sergeant, who showed him the apple which he had found under the ivy. And Perenna at once realized the supreme importance which the Prefect of Police attached to Mazeroux's explanations and to his unexpected discovery.

A conversation of some length took place between the magistrates and ended in the decision which Don Luis foresaw. M. Desmalions walked across the room to Mme. Fauville. It was the catastrophe. He reflected for a second on the manner in which he should open this final contest, and then he asked:

"Are you still unable, Madame, to tell us how you employed your time last night?"

She made an effort and whispered:

"Yes, yes.... I took a taxi and drove about. ... I also walked a little—"

"That is a fact which we can easily verify when we have found the driver of the taxi. Meanwhile, there is an opportunity of removing the somewhat ... grievous impression which your silence has left on our minds."

"I am quite ready—"

"It is this: the person or one of the persons who took part in the crime appears to have bitten into an apple which was afterward thrown away in the garden and which has just been found. To put an end to any suppositions concerning yourself, we should like you to perform the same action."

"Oh, certainly!" she cried, eagerly. "If this is all you need to convince you—"

She took one of the three apples which Desmalions handed her from the dish and lifted it to her mouth.

It was a decisive act. If the two marks resembled each other, the proof existed, assured and undeniable.

Before completing her movement, she stopped short, as though seized with a sudden fear.... Fear of what? Fear of the monstrous chance that might be her undoing? Or fear rather of the dread weapon which she was about to deliver against herself? In any case nothing accused her with greater directness than this last hesitation, which was incomprehensible if she was innocent, but clear as day if she was guilty!

"What are you afraid of, Madame?" asked M. Desmalions.

"Nothing, nothing," she said, shuddering. "I don't know.... I am afraid of everything.... It is all so horrible—"

"But, Madame, I assure you that what we are asking of you has no sort of importance and, I am persuaded, can only have a fortunate result for you. If you don't mind, therefore—"

She raised her hand higher and yet higher, with a slowness that betrayed her uneasiness. And really, in the fashion in which things were happening, the scene was marked by a certain solemnity and tragedy that wrung every heart.

"And, if I refuse?" she asked, suddenly.

"You are absolutely entitled to refuse," said the Prefect of Police. "But is it worth while, Madame? I am sure that your counsel would be the first to advise you—"

"My counsel?" she stammered, understanding the formidable meaning conveyed by that reply.

And, suddenly, with a fierce resolve and the almost ferocious air that contorts the face when great dangers threaten, she made the movement which they were pressing her to make. She opened her mouth. They saw the gleam of the white teeth. At one bite, the white teeth dug into the fruit.

"There you are, Monsieur," she said.

M. Desmalions turned to the examining magistrate.

"Have you the apple found in the garden?"

"Here, Monsieur le Prefet."

M. Desmalions put the two apples side by side.

And those who crowded round him, anxiously looking on, all uttered one exclamation.

The two marks of teeth were identical.

Identical! Certainly, before declaring the identity of every detail, the absolute analogy of the marks of each tooth, they must wait for the results of the expert's report. But there was one thing which there was no mistaking and that was the complete similarity of the two curves.

In either fruit the rounded arch was bent according to the same inflection. The two semicircles could have fitted one into the other, both very narrow, both a little long-shaped and oval and of a restricted radius which was the very character of the jaw.

The men did not speak a word. M. Desmalions raised his head. Mme. Fauville did not move, stood livid and mad with terror. But all the sentiments of terror, stupor and indignation that she might simulate with her mobile face and her immense gifts as an actress, did not prevail against the compelling proof that presented itself to every eye.

The two imprints were identical! The same teeth had bitten into both apples!

"Madame—" the Prefect of Police began.

"No, no," she cried, seized with a fit of fury, "no, it's not true.... This is all just a nightmare.... No, you are never going to arrest me? I in prison! Why, it's horrible!... What have I done? Oh, I swear that you are mistaken—"

She took her head between her hands.

"Oh, my brain is throbbing as if it would burst! What does all this mean? I have done no wrong.... I knew nothing. It was you who told me this morning.... Could I have suspected? My poor husband ... and that dear Edmond who loved me ... and whom I loved! Why should I have killed them? Tell me that! Why don't you answer?" she demanded. "People don't commit murder without a motive.... Well?... Well?... Answer me, can't you?"

And once more convulsed with anger, standing in an aggressive attitude, with her clenched hands outstretched at the group of magistrates, she screamed:

"You're no better than butchers ... you have no right to torture a woman like this.... Oh, how horrible! To accuse me ... to arrest me ... for nothing! ... Oh, it's abominable! ... What butchers you all are! ... And it's you in particular," addressing Perenna, "it's you—yes, I know—it's you who are the enemy.

"Oh, I understand! You had your reasons, you were here last night.... Then why don't they arrest you? Why not you, as you were here and I was not and know nothing, absolutely nothing of what happened.... Why isn't it you?"

The last words were pronounced in a hardly intelligible fashion. She had no strength left. She had to sit down, with her head bent over her knees, and she wept once more, abundantly.

Perenna went up to her and, raising her forehead and uncovering the tear-stained face, said:

"The imprints of teeth in both apples are absolutely identical. There is therefore no doubt whatever but that the first comes from you as well as the second."

"No!" she said.

"Yes," he affirmed. "That is a fact which it is materially impossible to deny. But the first impression may have been left by you before last night, that is to say, you may have bitten that apple yesterday, for instance—"

She stammered:

"Do you think so? Yes, perhaps, I seem to remember—yesterday morning—"

But the Prefect of Police interrupted her.

"It is useless, Madame; I have just questioned your servant, Silvestre. He bought the fruit himself at eight o'clock last evening. When M. Fauville went to bed, there were four apples in the dish. At eight o'clock this morning there were only three. Therefore the one found in the garden is incontestably the fourth; and this fourth apple was marked last night. And the mark is the mark of your teeth."

She stammered:

"It was not I ... it was not I ... that mark is not mine."

"But—"

"That mark is not mine.... I swear it as I hope to be saved.... And I also swear that I shall die, yes, die.... I prefer death to prison.... I shall kill myself.... I shall kill myself—"

Her eyes were staring before her. She stiffened her muscles and made a supreme effort to rise from her chair. But, once on her feet, she tottered and fell fainting on the floor.

While she was being seen to, Mazeroux beckoned to Don Luis and whispered:

"Clear out, Chief."

"Ah, so the orders are revoked? I'm free?"

"Chief, take a look at the beggar who came in ten minutes ago and who's talking to the Prefect. Do you know him?"

"Hang it all!" said Perenna, after glancing at a large red-faced man who did not take his eyes off him. "Hang it, it's Weber, the deputy chief!"

"And he's recognized you, Chief! He recognized Lupin at first sight. There's no fake that he can't see through. He's got the knack of it. Well, Chief, just think of all the tricks you've played on him and ask yourself if he'll stick at anything to have his revenge!"

"And you think he has told the Prefect?"

"Of course he has; and the Prefect has ordered my mates to keep you in view. If you make the least show of trying to escape them, they'll collar you."

"In that case, there's nothing to be done?"

"Nothing to be done? Why, it's a question of putting them off your scent and mighty quickly!"

"What good would that do me, as I'm going home and they know where I live?"

"Eh, what? Can you have the cheek to go home after what's happened?"

"Where do you expect me to sleep? Under the bridges?"

"But, dash it all, don't you understand that, after this job, there will be the most infernal stir, that you're compromised up to the neck as it is, and that everybody will turn against you?"

"Well?"

"Drop the business."

"And the murderers of Cosmo Mornington and the Fauvilles?"

"The police will see to that."

"Alexandre, you're an ass."

"Then become Lupin again, the invisible, impregnable Lupin, and do your own fighting, as you used to. But in Heaven's name don't remain Perenna! It is too dangerous. And don't occupy yourself officially with a business in which you are not interested."

"The things you say, Alexandre! I am interested in it to the tune of a hundred millions. If Perenna does not stick to his post, the hundred millions will be snatched from under his nose. And, on the one occasion when I can earn a few honest centimes, that would be most annoying."

"And, if they arrest you?"

"No go! I'm dead!"

"Lupin is dead. But Perenna is alive."

"As they haven't arrested me to-day, I'm easy in my mind."

"It's only put off. And the orders are strict from this moment onward. They mean to surround your house and to keep watch day and night."

"Capital. I always was frightened at night."

"But, good Lord! what are you hoping for?"

"I hope for nothing, Alexandre. I am sure. I am sure now that they will not dare arrest me."

"Do you imagine that Weber will stand on ceremony?"

"I don't care a hang about Weber. Without orders, Weber can do nothing."

"But they'll give him his orders."

"The order to shadow me, yes; to arrest me, no. The Prefect of Police has committed himself about me to such an extent that he will be obliged to back me up. And then there's this: the whole affair is so absurd, so complicated, that you people will never find your way out of it alone. Sooner or later, you will come and fetch me. For there is no one but myself able to fight such adversaries as these: not you nor Weber, nor any of your pals at the detective office. I shall expect your visit, Alexandre."

On the next day an expert examination identified the tooth prints on the two apples and likewise established the fact that the print on the cake of chocolate was similar to the others.

Also, the driver of a taxicab came and gave evidence that a lady engaged him as she left the opera, told him to drive her straight to the end of the Avenue Henri Martin, and left the cab on reaching that spot.

Now the end of the Avenue Henri Martin was within five minutes' walk of the Fauvilles' house.

The man was brought into Mme. Fauville's presence and recognized her at once.

What had she done in that neighbourhood for over an hour?

Marie Fauville was taken to the central lockup, was entered on the register, and slept, that night, at the Saint-Lazare prison.

That same day, when the reporters were beginning to publish details of the investigation, such as the discovery of the tooth prints, but when they did not yet know to whom to attribute them, two of the leading dailies used as a headline for their article the very words which Don Luis Perenna had employed to describe the marks on the apple, the sinister words which so well suggested the fierce, savage, and so to speak, brutal character of the incident:

"THE TEETH OF THE TIGER."



CHAPTER FIVE

THE IRON CURTAIN

It is sometimes an ungrateful task to tell the story of Arsene Lupin's life, for the reason that each of his adventures is partly known to the public, having at the time formed the subject of much eager comment, whereas his biographer is obliged, if he would throw light upon what is not known, to begin at the beginning and to relate in full detail all that which is already public property.

It is because of this necessity that I am compelled to speak once more of the extreme excitement which the news of that shocking series of crimes created in France, in Europe and throughout the civilized world. The public heard of four murders practically all at once, for the particulars of Cosmo Mornington's will were published two days later.

There was no doubt that the same person had killed Cosmo Mornington, Inspector Verot, Fauville the engineer, and his son Edmond. The same person had made the identical sinister bite, leaving against himself or herself, with a heedlessness that seemed to show the avenging hand of fate, a most impressive and incriminating proof, a proof which made people shudder as they would have shuddered at the awful reality: the marks of his or her teeth, the teeth of the tiger!

And, in the midst of all this bloodshed, at the most tragic moment of the dismal tragedy, behold the strangest of figures emerging from the darkness!

An heroic adventurer, endowed with astounding intelligence and insight, had in a few hours partly unravelled the tangled skeins of the plot, divined the murder of Cosmo Mornington, proclaimed the murder of Inspector Verot, taken the conduct of the investigation into his own hands, delivered to justice the inhuman creature whose beautiful white teeth fitted the marks as precious stones fit their settings, received a cheque for a million francs on the day after these exploits and, finally, found himself the probable heir to an immense fortune.

And here was Arsene Lupin coming to life again!

For the public made no mistake about that, and, with wonderful intuition, proclaimed aloud that Don Luis Perenna was Arsene Lupin, before a close examination of the facts had more or less confirmed the supposition.

"But he's dead!" objected the doubters.

To which the others replied:

"Yes, Dolores Kesselbach's corpse was recovered under the still smoking ruins of a little chalet near the Luxemburg frontier and, with it, the corpse of a man whom the police identified as Arsene Lupin. But everything goes to show that the whole scene was contrived by Lupin, who, for reasons of his own, wanted to be thought dead. And everything shows that the police accepted and legalized the theory of his death only because they wished to be rid of their everlasting adversary.

"As a proof, we have the confidences made by Valenglay, who was Prime Minister at the time and whom the chances of politics have just replaced at the head of the government. And there is the mysterious incident on the island of Capri when the German Emperor, just as he was about to be buried under a landslip, was saved by a hermit who, according to the German version, was none other than Arsene Lupin."

To this came a fresh objection:

"Very well; but read the newspapers of the time: ten minutes afterward, the hermit flung himself into the sea from Tiberius' Leap." And the answer:

"Yes, but the body was never found. And, as it happens, we know that a steamer picked up a man who was making signals to her and that this steamer was on her way to Algiers. Well, a few days later, Don Luis Perenna enlisted in the Foreign Legion at Sidi-bel-Abbes."

Of course, the controversy upon which the newspapers embarked on this subject was carried on discreetly. Everybody was afraid of Lupin; and the journalists maintained a certain reserve in their articles, confined themselves to comparing dates and pointing out coincidences, and refrained from speaking too positively of any Lupin that might lie hidden under the mask of Perenna.

But, as regards the private in the Foreign Legion and his stay in Morocco, they took their revenge and let themselves go freely.

Major d'Astrignac had spoken. Other officers, other comrades of Perenna's, related what they had seen. The reports and daily orders concerning him were published. And what became known as "The Hero's Idyll" began to take the form of a sort of record each page of which described the maddest and unlikeliest of facts.

At Mediouna, on the twenty-fourth of March, the adjutant, Captain Pollex, awarded Private Perenna four days' cells on a charge of having broken out of camp past two sentries after evening roll call, contrary to orders, and being absent without leave until noon on the following day. Perenna, the report went on to say, brought back the body of his sergeant, killed in ambush. And in the margin was this note, in the colonel's hand:

"The colonel commanding doubles Private Perenna's award, but mentions his name in orders and congratulates and thanks him."

After the fight of Ber-Rechid, Lieutenant Fardet's detachment being obliged to retreat before a band of four hundred Moors, Private Perenna asked leave to cover the retreat by installing himself in a kasbah.

"How many men do you want, Perenna?"

"None, sir."

"What! Surely you don't propose to cover a retreat all by yourself?"

"What pleasure would there be in dying, sir, if others were to die as well as I?"

At his request, they left him a dozen rifles, and divided with him the cartridges that remained. His share came to seventy-five.

The detachment got away without being further molested. Next day, when they were able to return with reinforcements, they surprised the Moors lying in wait around the kasbah, but afraid to approach. The ground was covered with seventy-five of their killed.

Our men drove them off. They found Private Perenna stretched on the floor of the kasbah. They thought him dead. He was asleep!

He had not a single cartridge left. But each of his seventy-five bullets had gone home.

What struck the imagination of the public most, however, was Major Comte d'Astrignac's story of the battle of Dar-Dbibarh. The major confessed that this battle, which relieved Fez at the moment when we thought that all was lost and which created such a sensation in France, was won before it was fought and that it was won by Perenna, alone!

At daybreak, when the Moorish tribes were preparing for the attack, Private Perenna lassoed an Arab horse that was galloping across the plain, sprang on the animal, which had no saddle, bridle, nor any sort of harness, and without jacket, cap, or arms, with his white shirt bulging out and a cigarette between his teeth, charged, with his hands in his trousers-pockets!

He charged straight toward the enemy, galloped through their camp, riding in and out among the tents, and then left it by the same place by which he had gone in.

This quite inconceivable death ride spread such consternation among the Moors that their attack was half-hearted and the battle was won without resistance.

This, together with numberless other feats of bravado, went to make up the heroic legend of Perenna. It threw into relief the superhuman energy, the marvellous recklessness, the bewildering fancy, the spirit of adventure, the physical dexterity, and the coolness of a singularly mysterious individual whom it was impossible not to take for Arsene Lupin, but a new and greater Arsene Lupin, dignified, idealized, and ennobled by his exploits.

One morning, a fortnight after the double murder in the Boulevard Suchet, this extraordinary man, who aroused such eager interest and who was spoken of on every side as a fabulous and more or less impossible being: one morning, Don Luis Perenna dressed himself and went the rounds of his house.

It was a comfortable and roomy eighteenth-century mansion, situated at the entrance to the Faubourg Saint-Germain, on the little Place du Palais-Bourbon. He had bought it, furnished, from a rich Hungarian, Count Malonyi, keeping for his own use the horses, carriages, motor cars, and taking over the eight servants and even the count's secretary, Mlle. Levasseur, who undertook to manage the household and to receive and get rid of the visitors—journalists, bores and curiosity-dealers—attracted by the luxury of the house and the reputation of its new owner.

After finishing his inspection of the stables and garage, he walked across the courtyard and went up to his study, pushed open one of the windows and raised his head. Above him was a slanting mirror; and this mirror reflected, beyond the courtyard and its surrounding wall, one whole side of the Place du Palais-Bourbon.

"Bother!" he said. "Those confounded detectives are still there. And this has been going on for a fortnight. I'm getting tired of this spying."

He sat down, in a bad temper, to look through his letters, tearing up, after he had read them, those which concerned him personally and making notes on the others, such as applications for assistance and requests for interviews. When he had finished, he rang the bell.

"Ask Mlle. Levasseur to bring me the newspapers."

She had been the Hungarian count's reader as well as his secretary; and Perenna had trained her to pick out in the newspapers anything that referred to him, and to give him each morning an exact account of the proceedings that were being taken against Mme. Fauville.

Always dressed in black, with a very elegant and graceful figure, she had attracted him from the first. She had an air of great dignity and a grave and thoughtful face which made it impossible to penetrate the secret of her soul, and which would have seemed austere had it not been framed in a cloud of fair curls, resisting all attempts at discipline and setting a halo of light and gayety around her.

Her voice had a soft and musical tone which Perenna loved to hear; and, himself a little perplexed by Mlle. Levasseur's attitude of reserve, he wondered what she could think of him, of his mode of life, and of all that the newspapers had to tell of his mysterious past.

"Nothing new?" he asked, as he glanced at the headings of the articles.

She read the reports relating to Mme. Fauville; and Don Luis could see that the police investigations were making no headway. Marie Fauville still kept to her first method, that of weeping, making a show of indignation, and assuming entire ignorance of the facts upon which she was being examined.

"It's ridiculous," he said, aloud. "I have never seen any one defend herself so clumsily."

"Still, if she's innocent?"

It was the first time that Mlle. Levasseur had uttered an opinion or rather a remark upon the case. Don Luis looked at her in great surprise.

"So you think her innocent, Mademoiselle?"

She seemed ready to reply and to explain the meaning of her interruption. It was as though she were removing her impassive mask and about to allow her face to adopt a more animated expression under the impulse of her inner feelings. But she restrained herself with a visible effort, and murmured:

"I don't know. I have no views."

"Possibly," he said, watching her with curiosity, "but you have a doubt: a doubt which would be permissible if it were not for the marks left by Mme. Fauville's own teeth. Those marks, you see, are something more than a signature, more than a confession of guilt. And, as long as she is unable to give a satisfactory explanation of this point—"

But Marie Fauville vouchsafed not the slightest explanation of this or of anything else. She remained impenetrable. On the other hand, the police failed to discover her accomplice or accomplices, or the man with the ebony walking-stick and the tortoise-shell glasses whom the waiter at the Cafe du Pont-Neuf had described to Mazeroux and who seemed to have played a singularly suspicious part. In short, there was not a ray of light thrown upon the subject.

Equally vain was all search for the traces of Victor, the Roussel sister's first cousin, who would have inherited the Mornington bequest in the absence of any direct heirs.

"Is that all?" asked Perenna.

"No," said Mlle. Levasseur, "there is an article in the Echo de France—"

"Relating to me?"

"I presume so, Monsieur. It is called, 'Why Don't They Arrest Him?'"

"That concerns me," he said, with a laugh.

He took the newspaper and read:

"Why do they not arrest him? Why go against logic and prolong an unnatural situation which no decent man can understand? This is the question which everybody is asking and to which our investigations enable us to furnish a precise reply.

"Two years ago, in other words, three years after the pretended death of Arsene Lupin, the police, having discovered or believing they had discovered that Arsene Lupin was really none other than one Floriani, born at Blois and since lost to sight, caused the register to be inscribed, on the page relating to this Floriani, with the word 'Deceased,' followed by the words 'Under the alias of Arsene Lupin.'

"Consequently, to bring Arsene Lupin back to life, there would be wanted something more than the undeniable proof of his existence, which would not be impossible. The most complicated wheels in the administrative machine would have to be set in motion, and a decree obtained from the Council of State.

"Now it would seem that M. Valenglay, the Prime Minister, together with the Prefect of Police, is opposed to making any too minute inquiries capable of opening up a scandal which the authorities are anxious to avoid. Bring Arsene Lupin back to life? Recommence the struggle with that accursed scoundrel? Risk a fresh defeat and fresh ridicule? No, no, and again no!

"And thus is brought about this unprecedented, inadmissible, inconceivable, disgraceful situation, that Arsene Lupin, the hardened thief, the impenitent criminal, the robber-king, the emperor of burglars and swindlers, is able to-day, not clandestinely, but in the sight and hearing of the whole world, to pursue the most formidable task that he has yet undertaken, to live publicly under a name which is not his own, but which he has incontestably made his own, to destroy with impunity four persons who stood in his way, to cause the imprisonment of an innocent woman against whom he himself has accumulated false evidence, and at the end of all, despite the protests of common sense and thanks to an unavowed complicity, to receive the hundred millions of the Mornington legacy.

"There is the ignominious truth in a nutshell. It is well that it should be stated. Let us hope, now that it stands revealed, that it will influence the future conduct of events."

"At any rate, it will influence the conduct of the idiot who wrote that article," said Lupin, with a grin.

He dismissed Mlle. Levasseur and rang up Major d'Astrignac on the telephone.

"Is that you, Major? Perenna speaking."

"Yes, what is it?"

"Have you read the article in the Echo de France?"

"Yes."

"Would it bore you very much to call on that gentleman and ask for satisfaction in my name?"

"Oh! A duel!"

"It's got to be, Major. All these sportsmen are wearying me with their lucubrations. They must be gagged. This fellow will pay for the rest."

"Well, of course, if you're bent on it—"

"I am, very much."

* * * * *

The preliminaries were entered upon without delay. The editor of the Echo de France declared that the article had been sent in without a signature, typewritten, and that it had been published without his knowledge; but he accepted the entire responsibility.

That same day, at three o'clock, Don Luis Perenna, accompanied by Major d'Astrignac, another officer, and a doctor, left the house in the Place du Palais-Bourbon in his car, and, followed by a taxi crammed with the detectives engaged in watching him, drove to the Parc des Princes.

While waiting for the arrival of the adversary, the Comte d'Astrignac took Don Luis aside.

"My dear Perenna, I ask you no questions. I don't want to know how much truth there is in all that is being written about you, or what your real name is. To me, you are Perenna of the Legion, and that is all I care about. Your past began in Morocco. As for the future, I know that, whatever happens and however great the temptation, your only aim will be to revenge Cosmo Mornington and protect his heirs. But there's one thing that worries me."

"Speak out, Major."

"Give me your word that you won't kill this man."

"Two months in bed, Major; will that suit you?"

"Too long. A fortnight."

"Done."

The two adversaries took up their positions. At the second encounter, the editor of the Echo de France fell, wounded in the chest.

"Oh, that's too bad of you, Perenna!" growled the Comte d'Astrignac. "You promised me—"

"And I've kept my promise, Major."

The doctors were examining the injured man. Presently one of them rose and said:

"It's nothing. Three weeks' rest, at most. Only a third of an inch more, and he would have been done for."

"Yes, but that third of an inch isn't there," murmured Perenna.

Still followed by the detectives' motor cab, Don Luis returned to the Faubourg Saint-Germain; and it was then that an incident occurred which was to puzzle him greatly and throw a most extraordinary light on the article in the Echo de France.

In the courtyard of his house he saw two little puppies which belonged to the coachman and which were generally confined to the stables. They were playing with a twist of red string which kept catching on to things, to the railings of the steps, to the flower vases. In the end, the paper round which the string was wound, appeared. Don Luis happened to pass at that moment. His eyes noticed marks of writing on the paper, and he mechanically picked it up and unfolded it.

He gave a start. He had at once recognized the opening lines of the article printed in the Echo de France. And the whole article was there, written in ink, on ruled paper, with erasures, and with sentences added, struck out, and begun anew.

He called the coachman and asked him:

"Where does this ball of string come from?"

"The string, sir? Why, from the harness-room, I think. It must have been that little she-devil of a Mirza who—"

"And when did you wind the string round the paper?"

"Yesterday evening, Monsieur."

"Yesterday evening. I see. And where is the paper from?"

"Upon my word, Monsieur, I can't say. I wanted something to wind my string on. I picked this bit up behind the coach-house where they fling all the rubbish of the house to be taken into the street at night."

Don Luis pursued his investigations. He questioned or asked Mlle. Levasseur to question the other servants. He discovered nothing; but one fact remained: the article in the Echo de France had been written, as the rough draft which he had picked up proved, by somebody who lived in the house or who was in touch with one of the people in the house.

The enemy was inside the fortress.

But what enemy? And what did he want? Merely Perenna's arrest?

All the remainder of the afternoon Don Luis continued anxious, annoyed by the mystery that surrounded him, incensed at his own inaction, and especially at that threatened arrest, which certainly caused him no uneasiness, but which hampered his movements.

Accordingly, when he was told at about ten o'clock that a man who gave the name of Alexandre insisted on seeing him, he had the man shown in; and when he found himself face to face with Mazeroux, but Mazeroux disguised beyond recognition and huddled in an old cloak, he flung himself on him as on a prey, hustling and shaking him.

"So it's you, at last?" he cried. "Well, what did I tell you? You can't make head or tail of things at the police office and you've come for me! Confess it, you numskull! You've come to fetch me! Oh, how funny it all is! Gad, I knew that you would never have the cheek to arrest me, and that the Prefect of Police would manage to calm the untimely ardour of that confounded Weber! To begin with, one doesn't arrest a man whom one has need of. Come, out with it! Lord, how stupid you look! Why don't you answer? How far have you got at the office? Quick, speak! I'll settle the thing in five seconds. Just tell me about your inquiry in two words, and I'll finish it for you in the twinkling of a bed-post, in two minutes by my watch. Well, you were saying—"

"But, Chief," spluttered Mazeroux, utterly nonplussed.

"What! Must I drag the words out of you? Come on! I'll make a start. It has to do with the man with the ebony walking-stick, hasn't it? The one we saw at the Cafe du Pont-Neuf on the day when Inspector Verot was murdered?"

"Yes, it has."

"Have you found his traces?"

"Yes."

"Well, come along, find your tongue!"

"It's like this, Chief. Some one else noticed him besides the waiter. There was another customer in the cafe; and this other customer, whom I ended by discovering, went out at the same time as our man and heard him ask somebody in the street which was the nearest underground station for Neuilly."

"Capital, that. And, in Neuilly, by asking questions on every side, you ferreted him out?"

"And even learnt his name, Chief: Hubert Lautier, of the Avenue du Roule. Only he decamped from there six months ago, leaving his furniture behind him and taking nothing but two trunks."

"What about the post-office?"

"We have been to the post-office. One of the clerks recognized the description which we supplied. Our man calls once every eight or ten days to fetch his mail, which never amounts to much: just one or two letters. He has not been there for some time."

"Is the correspondence in his name?"

"No, initials."

"Were they able to remember them?"

"Yes: B.R.W.8."

"Is that all?"

"That is absolutely all that I have discovered. But one of my fellow officers succeeded in proving, from the evidence of two detectives, that a man carrying a silver-handled ebony walking-stick and a pair of tortoise-shell glasses walked out of the Gare d'Auteuil on the evening of the double murder and went toward Renelagh. Remember the presence of Mme. Fauville in that neighbourhood at the same hour. And remember that the crime was committed round about midnight. I conclude from this—"

"That will do; be off!"

"But—"

"Get!"

"Then I don't see you again?"

"Meet me in half an hour outside our man's place."