The night which followed that conversation with my mother remains in my memory as the most wretched I had hitherto endured; and yet how many sleepless nights had I passed, while all the world around me slept, in bitter conflict with a thought which held mine eyes waking and devoured my heart! I was like a prisoner who has sounded every inch of his dungeon—the walls, the floor, the ceiling—and who, on shaking the bars of his window for the hundredth time, feels one of the iron rods loosen under the pressure. He hardly dares to believe in his good fortune, and he sits down upon the ground almost dazed by the vision of deliverance that has dawned upon him. "I must be cool-headed now," said I to myself, as I walked to and fro in the smoking-room, whither I had retired without tasting the meal that was served on my return. Evening came, then the black night; the dawn followed, and once more the full day. Still I was there, striving to see clearly amid the cloud of suppositions in which an event, simple in itself (only that in my state of mind no event would have seemed simple), had wrapped me.  
I was too well used to these mental tempests not to know that the only safety consisted in clinging to the positive facts, as though to immovable rocks.
 
In the present instance, the positive facts reduced themselves to two: first, I had just learned that a brother of M. Termonde, who passed for dead, and of whom my stepfather never spoke, existed; secondly, that this man, disgraced, proscribed, ruined, an outlaw in fact, exercised a dictatorship of terror over his rich, honored, and irreproachable brother. The first of these two facts explained itself. It was quite natural that Jacques Termonde should not dispel the legend of the suicide, which was of his own invention, and had saved the other from the galleys. It is never pleasant to have to own a thief, a forger, or a deserter, for one's nearest relation; but this, after all, is only an excessively disagreeable matter.
 
The second fact was of a different kind. The disproportion between the cause assigned by my stepfather and its result in the terror from which he was suffering was too great. The dominion which Edmond Termonde exercised over his brother was not to be justified by the threat of his return, if that return were not to have any other consequence than a transient scandal. My mother, who regarded her husband as a noble-minded, high-souled, great-hearted man, might be satisfied with the alleged reason; but not I. It occurred to me to consult the Code of Military Justice, and I ascertained, by the 184th clause, that a deserter cannot claim immunity from punishment until after he has attained his forty- seventh year, so that it was most likely Edmond Termonde was still within the reach of the law.
 
Was it possible that his desire to shield his brother from the punishment of the offense of desertion should throw my stepfather into such a state of illness and agitation? I discerned another reason for this dominion—some dark and terrible bond of complicity between the two men. What if Jacques Termonde had employed his brother to kill my father, and proof of the transaction was still in the murderer's possession? No doubt his hands would be tied so far as the magistrates were concerned; he had it in his power to enlighten my mother, and the mere threat of doing this would suffice to make a loving husband tremble, and tame his fierce pride.
 
"I must be cool," I repeated, "I must be cool;" and I put all my strength to recalling the physical and moral particulars respecting the crime which were in my possession. It was my business now to try whether one single point remained obscure when tested by the theory of the identity of Rochdale with Edmond Termonde. The witnesses were agreed in representing Rochdale as tall and stout, my mother had described Edmond Termonde as a big, heavy man. Fifteen years lay between the assassin of 1864, and the elderly rake of 1879; but nothing prevented the two from being identical. My mother had dwelt upon the color of Edmond Termonde's eyes, pale blue like those of his brother; the concierge of the Imperial Hotel had mentioned the pale blue color and the brightness of Rochdale's eyes in his deposition, which I knew by heart. He had noticed this peculiarity on account of the contrast of the eyes with the man's bronzed complexion. Edmond Termonde had taken refuge in America after his alleged suicide, and what had M. Massol said? I could hear him repeat, with his well-modulated voice, and methodical movement of the hand: "A foreigner, American or English, or, perhaps, a Frenchman settled in America." Physical impossibility there existed none.
 
And moral impossibility? That was equally absent. In order to convince myself more fully of this, I took up the history of the crime from the moment at which my father's correspondence concerning Jacques Termonde became explicit, that is to say, in January, 1864.
 
So as to rid my judgment of every trace of personal enmity, I suppressed the names in my thoughts, reducing the dreadful occurrence by which I had suffered to the bareness of an abstract narrative. A man is desperately in love with the wife of one of his intimate friends, a woman whom he knows to be absolutely, spotlessly virtuous; he knows, he feels, that if she were free she would love him; but that, not being free, she will never, never be his. This man is of the temperament which makes criminals, his passions are violent in the extreme, he has no scruples and a despotic will; he is accustomed to see everything give way to his desires. He perceives that his friend is growing jealous; a little later and the house will no longer be open to him.
 
Would not the thought come to him—if the husband could be got rid of? And yet—?
 
This dream of the death of him, who forms the sole obstacle to his happiness, troubles the man's head, it recurs once, twice, many times, and he turns the fatal idea over and over again in his brain until he becomes used to it. He arrives at the "If I dared," which is the starting point of the blackest villainies. The idea takes a precise form; he conceives that he might have the man whom he now hates, and by whom he feels that he is hated, killed. Has he not, far away, a wretch of a brother, whose actual existence, to say nothing of his present abode, is absolutely unknown? What an admirable instrument of murder he should find in this infamous, depraved, and needy brother, whom he holds at his beck and call by the aid in money that he sends him! And the temptation grows and grows. An hour comes when it is stronger than all besides, and the man, resolved to play this desperate game, summons his brother to Paris. How? By one or two letters in which he excites the rascal's hopes of a large sum of money to be gained, at the same time that he imposes the condition of absolute secrecy as to his voyage. The other accepts; he is a social failure, a bankrupt in life, he has neither relations nor ties, he has been leading an anonymous and haphazard existence for years. The two brothers are face to face. Up to that point all is logical, all is in conformity with the possible stages of a project of this order.
 
I arrived at the execution of it; and I continued to reason in the same way, impersonally. The rich brother proposes the blood- bargain to the poor brother. He offers him money; a hundred thousand francs, two hundred thousand, three hundred thousand.
 
From what motive should the scoundrel hesitate to accept the offer?
 
Moral ideas? What is the morality of a rake who has gone from libertinism to theft? Under the influence of my vengeful thoughts I had read the criminal news of the day in the journals, and the reports of criminal trials, too assiduously for years past, not to know how a man becomes a murderer. How many cases of stabbing, shooting, and poisoning have there not been, in which the gain was entirely uncertain, and the conditions of danger extreme, merely to enable the perpetrators to go, presently, and expend the murder- money in some low haunt of depravity?
 
Fear of the scaffold? Then nobody would kill. Besides, debauchees, whether they stop short at vice or roll down the descent into crime, have no foresight of the future. Present sensation is too strong for them; its image abolishes all other images, and absorbs all the vital forces of the temperament and the soul. An old dying mother, children perishing of hunger, a despairing wife; have these pictures of their deeds ever arrested drunkards, gamblers, or profligates? No more have the tragic phantoms of the tribunal, the prison, and the guillotine, when, thirsting for gold, they kill to procure it. The scaffold is far off, the brothel is at the street corner, and the being sunk in vice kills a man, just as a butcher would kill a beast, that he may go thither, or to the tavern, or to the low gaming-house, with a pocket full of money. This is the daily mode of procedure in crime.
 
Why should not the desire of a more elevated kind of debauch possess the same wicked attraction for men who are indeed more refined, but are quite as incapable of moral goodness as the rascally frequenters of the lowest dens of iniquity?
 
Ah! the thought that my father's blood might have paid for suppers in a New York night-house was too cruel and unendurable. I lost courage to pursue my cold, calm, reasonable deductions, a kind of hallucination came upon me—a mental picture of the hideous scene— and I felt my reason reel. With a great effort I turned to the portrait of my father, gazed at it long, and spoke to him as if he could have heard me, aloud, in abject entreaty. "Help me, help me!"
 
And then, I once more became strong enough to resume the dreadful hypothesis, and to criticise it point by point. Against it was its utter unlikelihood; it resembled nothing but the nightmare of a diseased imagination. A brother who employs his brother as the assassin of a man whose wife he wants to marry! Still, although the conception of such a devilish plot belonged to the domain of the wildest fantasies, I said to myself: "This may be so, but in the way of crime, there is no such thing as unlikelihood. The assassin ceases to move in the habitual grooves of social life by the mere fact that he makes up his mind to murder." And then a score of examples of crimes committed under circumstances as strange and exceptional as those whose greater or less probability I was then discussing with myself recurred to my memory.
 
One objection arose at once. Admitting this complicated crime to be possible only, how came I to be the first to form a suspicion of it? Why had not the keen, subtle, experienced old magistrate, M. Massol, looked in that direction for an explanation of the mystery in whose presence he confessed himself powerless? The answer came ready. M. Massol did not think of it, that was all. The important thing is to know, not whether the Judge of Instruction suspected the fact, or did not suspect it; but whether the fact itself is, or is not, real.
 
Again, what indications had reached M. Massol to put him on this scent? If he had thoroughly studied my father's home and his domestic life, he had acquired the certainty that my mother was a faithful wife and a good woman. He had witnessed her sincere grief, and he had not seen, as I had, letters written by my father in which he acknowledged his jealousy, and revealed the passion of his false friend.
 
But, even supposing the judge had from the first suspected the villainy of my future stepfather, the discovery of his accomplices would have been the first thing to be done, since, in any case, the presence of M. Termonde in our house at the time of the murder was an ascertained fact.
 
Supposing M. Massol had been led to think of the brother who had disappeared, what then? Where were the traces of that brother to be found? Where and how? If Edmond and Jacques had been accomplices in the crime, would not their chief care be to contrive a means of correspondence which should defy the vigilance of the police? Did they not cease for a time to communicate with each other by letters? What had they to communicate, indeed? Edmond was in possession of the price of the murder, and Jacques was occupied in completing his conquest of my mother's heart.
 
I resumed my argument; all this granted again, but, although M. Massol was ignorant of the essential factor in the case, although he was unaware of Jacques Termonde's passion for the wife of the murdered man, my aunt knew it well, she had in her hands indisputable proofs of my father's suspicions; how came she not to have thought as I was now thinking. And how did I know that she had NOT thought just as I was thinking? She had been tormented by suspicions, even she, too; she had lived and died haunted by them. The only difference was that she had included my mother in them, being incapable of forgiving her the sufferings of the brother whom she loved so deeply. To act against my mother was to act against me, so she had forsworn that idea forever. But if she would have acted against my mother, how could she have gone beyond the domain of vague inductions, since she, no more than I, could have divined my stepfather's alibi, or known of the actual existence of Edmond Termonde? No; that I should be the first to explain the murder of my father as I did, proved only that I had come into possession of additional information respecting the surroundings of the crime, and not that the conjectures drawn from it were baseless.
 
Other objections presented themselves. If my stepfather had employed his brother to commit the murder, how came he to reveal the existence of that brother to his wife? An answer to this question was not far to seek. If the crime had been committed under conditions of complicity, only one proof of the fact could remain, namely, the letters written by Jacques Termonde to Edmond, in which the former recalled the latter to Europe and gave him instructions for his jou............