The latter, however, on learning of Duke Charles’ opposition to the marriage of her son to Joan, declared her resolution of striking him a blow that should assuredly wound him frightfully both in his affections as well as in the esteem of the public before whom, she assured Joan, he would be eternally dishonoured by it in the event of his refusing to listen to the voice of reason.
First of all, advised the Empress, Charles must be made acquainted with the fact that his veto of Joan’s espousal to Robert was without reason; for, in very truth, Joan was expecting shortly to become the mother of Andrew of Hungary’s posthumous child, who, in the natural course of things, must eventually succeed to the throne of Naples. Should Charles, however, in the face of this persist in placing obstacles in the way of Joan’s marriage to Robert, then the blow of which mention had been made—albeit the Empress had not divulged its nature, precisely—should be launched upon him. Furthermore, added the Empress, she herself would at once inform Charles of Joan’s expectation of soon becoming a mother.
Joan, it must be added, had told her aunt of Charles’ knowledge of the persons primarily responsible for Andrew’s death; so that the Empress should realise the peril that menaced her at the Duke of Durazzo’s hands.
Undeterred, though, by learning of his power over her, Catherine of Taranto betook herself immediately to the Palazzo Durazzo and boldly faced the arch-schemer. In wickedness and courage she was a match for him, and he knew it; so he received her news of the Queen’s condition with smooth words very delicately barbed and very poisonous. Thanking the Empress with every show of respectful gratitude for the honour that she had conferred upon him by coming thus in person with the all-important and all-welcome news; for himself he asked only the title of Duke of Calabria, which alone could enable him to watch over Joan’s interests properly and those of her child. Should the Queen, he added, see her way to complying with his request, then he should no longer feel it his duty to bring all the accomplices of her husband’s murder to justice; since, if Andrew of Hungary’s progeny were, in time, to occupy the throne, the murder itself would be rendered in a measure of no effect. In the event of Joan’s refusal, however, the enquiry already instituted in regard to the King’s assassins would be prosecuted to the bitter end without respect for any one whosoever—an eventuality which as Charles pointed out to the Empress, with a diabolical smile, might be very unpleasant for several of their mutual friends. By which she was made to understand that Charles was perfectly aware of her own share in that detestable transaction.
In answer, the resourceful Empress, careful to appear suitably frightened by Charles’ hints, declared her willingness to do all she could to promote his wishes, begging only a little time in which to bring the Queen round to a more yielding frame of mind; a favour that Charles could not help but grant her. And so they parted, with the mutual assurance of a complete understanding.
On returning to the Castel Nuovo, the Empress, having reported what had passed to the unhappy Joan, withdrew to consider her own plan of action in the struggle with Charles of Durazzo. At length, she hit upon a scheme so truly infernal as to claim preëminence over anything that had preceded it in the long list of her iniquities. She would strike her enemy to the heart; she would kill his intellect and break him as surely as with an iron bar upon the wheel, through the one person that he loved and venerated in all the world—his widowed mother, the saintly Duchess Agnes of Durazzo.
Now it chanced that, during those days, Agnes of Durazzo lay sick of a lingering and mysterious malady, the nature of which it was beyond the ability of her physician to determine. In all probability the Duchess’ disease was one of an internal tumour; be that as it may, it was in every symptomatic particular only too well adapted to the unspeakable purpose of the Empress, who forthwith set herself to disseminating rumours destructive to the reputation of the good and gentle Duchess. Not satisfied with this alone, moreover, she contrived by a hellish stratagem to deceive even the Duchess’ doctor, so that he believed himself justified in imparting his opinion to Charles of Durazzo, in person.
So that mad horror, as of a lost soul, took possession of Charles, and the desire of the Empress that his mind should become the prey of devils was fulfilled.
The luckless, blundering physician he dismissed curtly from his presence after their interview. An hour later the unfortunate man was discovered in a back street of Naples, stabbed to death,—but not before he had written out, by Charles’ orders, the recipe of a certain draught to be administered to his illustrious patient; which thing was done in the evening of the same day.
Shortly afterwards, Charles was hastily summoned to his mother’s bedside from the room in which he had spent the rest of that awful day alone with his thoughts after parting from the doctor. On entering that of his mother, her attendants withdrew, leaving the fast-dying woman alone with the son who had destroyed her in the interests of the family honour.