M. Lecoq rose and promenaded, as his habit was, up and down the room. "Now let's see," he continued, "how I ought to proceed in order to discover the probable conduct of a man whose antecedents, traits, and mind are known to me. To begin with, I throw off my own individuality and try to assume his. I substitute his will for my own. I cease to be a detective and become this man, whatever he is. In this case, for instance, I know very well what I should do if I were Tremorel. I should take such measures as would throw all the detectives in the universe off the scent. But I must forget Monsieur Lecoq in order to become Hector de Tremorel. How would a man reason who was base enough to rob his friend of his wife, and then see her poison her husband before his very eyes? We already know that Tremorel hesitated a good while before deciding to commit this crime. The logic of events, which fools call fatality, urged him on. It is certain that he looked upon the murder in every point of view, studied its results, and tried to find means to escape from justice. All his acts were determined on long beforehand, and neither immediate necessity nor unforeseen circumstances disturbed his mind. The moment he had decided on the crime, he said to himself: 'Grant that Bertha has been murdered; thanks to my precautions, they think that I have been killed too; Laurence, with whom I elope, writes a letter in which she announces her suicide; I have money, what must I do?' The problem, it seems to me, is fairly put in this way." "Perfectly so," approved M. Plantat. "Naturally, Tremorel would choose from among all the methods of flight of which he had ever heard, or which he could imagine, that which seemed to him the surest and most prompt. Did he meditate leaving the country? That is more than probable. Only, as he was not quite out of his senses, he saw that it was most difficult, in a foreign country, to put justice off the track. If a man flies from France to escape punishment, he acts absurdly. Fancy a man and woman wandering about a country of whose language they are ignorant; they attract attention at once, are observed, talked about, followed. They do not make a purchase which is not remarked; they cannot make any movement without exciting curiosity. The further they go the greater their danger. If they choose to cross the ocean and go to free America, they must go aboard a vessel; and the moment they do that they may be considered as good as lost. You might bet twenty to one they would find, on landing on the other side, a detective on the pier armed with a warrant to arrest them. I would engage to find a Frenchman in eight days, even in London, unless he spoke pure enough English to pass for a citizen of the United Kingdom. Such were Tremorel's reflections. He recollected a thousand futile attempts, a hundred surprising adventures, narrated by the papers; and it is certain that he gave up the idea of going abroad."