"It will not take long, Monsieur le Préfet. It will not take long for two reasons: first, because M. Fauville's confessions remain at our disposal and we know definitely the monstrous part which he played; and, secondly, because, after all, the truth, however complicated it may seem, is really very simple.
"It all lies in the objection which you, Monsieur le Préfet, made to me on leaving the wrecked house on the Boulevard Suchet: 'How is it,' you asked, 'that the Mornington inheritance is not once mentioned in Hippolyte Fauville's confession?' It all lies in that, Monsieur le Préfet. Hippolyte Fauville did not say a word about the inheritance; and the reason evidently is that he did not know of it.
"And the reason why Gaston Sauverand was able to tell me his whole sensational story without making the least allusion to the inheritance was that the inheritance played no sort of part in Gaston Sauverand's story. He, too, knew nothing of it before those events, any more than Marie Fauville did, or Florence Levasseur. There is no denying the fact: Hippolyte Fauville was guided by revenge and by revenge alone. If not, why should he have acted as he did, seeing that Cosmo Mornington's millions reverted to him by the fullest of rights? Besides, if he had wished to enjoy those millions, he would not have begun by killing himself.
"One thing, therefore, is certain: the inheritance in no way affected Hippolyte Fauville's resolves or actions. And, nevertheless, one after the other, with inflexible regularity, as if they had been struck down in the very order called for by the terms of the Mornington inheritance, they all disappeared: Cosmo Mornington, then Hippolyte Fauville, then Edmond Fauville, then Marie Fauville, then Gaston Sauverand. First, the possessor of the fortune; next, all those whom he had appointed his legatees; and, I repeat, in the very order in which the will enabled them to lay claim to the fortune!"
"Is it not strange?" asked Perenna, "and are we not bound to suppose that there was a controlling mind at the back of it all? Are we not bound to admit that the formidable contest was influenced by that inheritance, and that, above the hatred and jealousy of the loathsome Fauville, there loomed a being endowed with even more tremendous energy, pursuing a tangible aim and driving to their deaths, one by one, like so many numbered victims, all the unconscious actors in the tragedy of which he tied and of which he is now untying the threads?"
Don Luis leaned forward and continued earnestly:
"Monsieur le Préfet, the public instinct so thoroughly agrees with me, a section of the police, with M. Weber, the deputy chief detective at its head, argues in a manner so exactly identical with my own, that the existence of that being is at once confirmed in every mind. There had to be some one to act as the controlling brain, to provide the will and the energy. That some one was myself. After all, why not? Did not I possess the condition which was indispensable to make any one interested in the murders? Was I not Cosmo Mornington's heir?
"I will not defend myself. It may be that outside interference, it may be that circumstances, will oblige you, Monsieur le Préfet, to take unjustifiable measures against me; but I will not insult you by believing for one second that you can imagine the man whose acts you have been able to judge for the last two months capable of such crimes. And yet the public instinct is right in accusing me.
"Apart from Hippolyte Fauville, there is necessarily a criminal; and that criminal is necessarily Cosmo Mornington's heir. As I am not the man, another heir of Cosmo Mornington exists. It is he whom I accuse, Monsieur le Préfet.
"There is something more than a dead man's will in the wicked business that is being enacted before us. We thought for a time that there was only that; but there is something more. I have not been fighting a dead man all the time; more than once I have felt the very breath of life strike against my face. More than once I have felt the teeth of the tiger seeking to tear me.