The good fortune of Columbus was by this time on the wane. While his authority in Hispaniola was continually more and more compromised, his reputation and his character were the objects of violent attack in Europe. The officers whom he had sent back to the mother country, loudly accused him of injustice and cruelty; they even insinuated that he sought to render himself independent of the king; and against all these attacks, Columbus, being absent, could not defend himself. Ferdinand, influenced by this unworthy discourse, chose a commissioner, whom he ordered to proceed to the West Indies and to examine into the truth of the accusations. This gentleman was named Juan d'Aguado, and the choice of such a man to fulfil such a mission, possessing as he did a mind both prejudiced and partial, was not a happy one. Aguado arrived at Isabella in the month of October, at the time when the admiral was absent on an exploring expedition, and began at once to treat the brother of Columbus with extreme haughtiness, while Diego on his side, relying upon his title of governor-general, refused to submit to the commands of the royal commissioner. Aguado soon considered himself ready to return to Spain, although the examination he had made was a most incomplete one, when a fearful hurricane occurred, which sank the vessels which had brought him over in the harbour. There now remained only two caravels at Hispaniola, but Columbus, who had returned to the colony, acting with a greatness of soul which cannot be too much admired, placed one of these ships at the disposal of the commissioner, with the proviso that he himself would embark in the other, to plead his cause in person before the king. So matters stood, when the news arriving of the discovery of fresh gold-mines in Hispaniola, caused the admiral to put off his departure. Covetousness was a power strong enough to cut short all discussions; there was no longer any mention of the King of Spain, nor of the inquiry which he had ordered; officers were sent off to the new auriferous ground, finding there nuggets of which some weighed as much as twenty ounces, and a lump of amber of the weight of 300 pounds. Columbus ordered two fortresses to be erected for the protection of the miners, one on the boundary of the province of Cibao, the other upon the banks of the River Hayna. Having taken this precaution, he set out for Europe, full of eagerness to justify himself. The two caravels sailed from the harbour of St. Isabella on the 10th of March, 1496. On board of the admiral's ship were 225 persons and thirty Indians. On the 9th of April he touched at Marie-Galante, and on the 10th at Guadaloupe, to take in water; here there occurred a sharp skirmish with the natives. On the 20th he left this inhospitable island, and for a whole month he had to contend with contrary winds. On the 11th of June land was sighted in Europe, and on the next day the caravels entered the harbour of Cadiz.