But it would surely be easy to ascertain to a certainty whether the Conte Leandro had left the city that morning or not. If only it could be shown that he had done so? The amount of probability that he had really been the perpetrator of the crime, or the possibility of convicting him of it, would signify comparatively little. It would be sufficient if only a competing theory, based on a possibility, could be set up; if only such an alternative possibility could be presented to the minds of the judges as should justify them in feeling that the matter was too doubtful to warrant a conviction.
Then, suddenly, as he thought on all the causes of hatred that Bianca might be supposed to have inspired, his mind reverted to those words which Signor Pietro Logarini, the head of the police, had let drop when speaking of the Signorina Paolina Foscarelli:—"Women, who are fond of a man, don't like to see him with another woman, and a beautiful one, under the circumstances in which the Marchese might have been seen with Bianca."
That was the sense of the remark to which the Commissary had partially given utterance; and now the lawyer thought of it. He was tempted to believe that Logarini had been struck by the same idea that had before flashed into his mind almost with the force of a revelation.
Might it not have been the hand of the Venetian girl, maddened by jealousy, which had taken the life of her rival, while she slept?
Such a story would by no means be now told for the first time. Very far from it. Men had not now to learn furens quid foemina possit.
Paolina was known to have left the city at that suspiciously strange hour of the morning. She was known to have been, at all events, at no very great distance from the spot where the crime was committed.
And was it not possible that, on the theory of Ludovico's innocence, the true explanation of the exclamation, which had escaped from him at the city gate, was to be found in supposing that he, too, had been struck by a similar thought? Might not that outcry on Paolina, uttered when the speaker knew well that it was Bianca and not Paolina that lay dead before him, have been forced from him by the sudden thought that she had done the deed then revealed to him?
For the first time the shrewd lawyer began to feel a real doubt as to the author of the crime, It might be that the Marchesino was innocent after all, that his account of the events of that morning, as far as he was concerned, was simply true. As his mind dwelt on the matter the case against Paolina seemed to acquire additional force. It could be proved that this girl had been deeply and seriously attached to the Marchese Ludovico. It could be proved that she had seen her lover tete-a-tete with so dangerous a rival as the singer in circumstances that she had every right to consider very suspicious. It could be proved that she had been not far from the spot where the murder was committed much about the time when the deed must have been done.
It is an essentially and curiously Italian characteristic that the lawyer's rapidly growing conviction that Paolina had indeed been the criminal was strengthened and made easier of acceptance to his mind by the fact that the suspected criminal was not; a townswoman but a Venetian. It would have seemed less possible to him that a young Ravenna girl should have done such a deed. But one of those terrible Venetian women of whom so many blood-stained tale of passion and crime were on record!
Signor Fortini really began to think that his mind had strayed into the true path towards the solution of the mystery at last. And he was very much inclined to think that the germ of such a notion had already been deposited in the mind of the Police Commissioner.