The franciscan, who was in want of a confidential person to acquaint the marquis d'Aïamonte with the success of his negotiation, and to bring him fresh directions for his future conduct, thought he could not possibly fix upon a safer man than the devoted servant of the duke de Medina-Sidonia. He therefore detained the Castilian some time, on pretence of procuring him a passport, but in reality to make his observations, and to try his fidelity. Frequent meetings produced strict intimacy, and the more the politic Castilian took advantage of the franciscan's vanity, to draw his secret from him. The friar wishing to convince him of the credit and consideration he enjoyed at the court of Portugal, could not abstain from saying, that he should soon appear in another habit, being certain of a bishopric, and that he even flattered himself he should one day be raised to the dignity of cardinal. Sancho affected to disbelieve him, in order to force him to avow his design, and the friar was so much piqued at his apparent incredulity, that he could not help exclaiming "What then will you say, when you shall see the duke de Medina-Sidonia seated on a throne?" Sancho thus drew him on by repeated doubts of the truth of his assertions, till he at last became master of every secret of his heart; and the franciscan confessed that he was charged with a negociation in which the king was concerned; that the duke de Medina-Sidonia would shortly be the sovereign of Andalusia; that the marquis d'Aïamonte, to whom the king of Portugal owed the discovery of the late conspiracy, was at the head of this business; that the affairs of Spain were on the point of assuming another aspect; and that it rested with him alone to become master of considerable riches, if he would only consent to convey his letters to the marquis and the duke de Medina-Sidonia. Sancho, delighted with the possession of so important a secret, eagerly accepted the proposal, and renewed his professions of attachment to the duke. He took charge of the letters, and offered, if it were judged adviseable, to return himself with the answers. He then set off immediately for Andalusia, but the moment he reached the Spanish territories, he took the direct road to Madrid; and on arriving in that city, went directly to the prime minister's, who he desired might be made acquainted that Sancho, the treasurer of Portugal, lately escaped from the prisons of the usurper, requested to see him on an affair of great importance. The count-duke, naturally haughty, and difficult of access, refused to admit him to his presence, ordering him to return on the usual audience day; but Sancho, though thus rudely repulsed, was still importunate, declaring that he must see him, since the intelligence he brought related to the safety of the state, and calling God to witness his good faith, and the diligence he had employed to warn the minister of the impending danger.