At this critical moment Carabito, the agent of Nuñez, happened to return from _Cuba_ with a vessel freighted with arms and ammunition, and having seventy men on board. He anchored at some distance from _Darien_, but sent word of his arrival to Nuñez, all of which became speedily known to Pedrarias. The suspicious mind of the latter taking the alarm, he at once ordered Nuñez to be seized and confined; but he was prevailed upon by the bishop to inquire into the matter calmly, the result being that, as nothing treasonable was proved against him, Nuñez was set at liberty. The bishop next endeavoured to persuade Pedrarias to employ Vasco Nuñez on an expedition which he was about to despatch to the Southern Sea and to the Isle of Pearls. As, however, there was much credit and probably much wealth to be derived from it, Pedrarias preferred to give the command to his own kinsman, Morales, with whom he associated Francisco Pizarro, who had been in Nuñez’ expedition to the same region. Gaspar Morales accordingly started with sixty men, and traversed the mountains by a shorter route than that which had previously been taken. He arrived at the territories of a _cacique_ named Tutibrá, where he left one-half of his men under Peñalosa, whilst with the remainder he set out in canoes for the Pearl Islands. On arriving at the _Isla Rica_, so named by Nuñez, they experienced a warm reception from the _cacique_, who sallied forth four times against them, but who was as often repulsed with loss. His warriors were paralysed by the firearms and the blood-hounds, and the _cacique_ was at length obliged to sue for peace. He presented to his guests as a peace-offering a basket filled with pearls, two of them being of remarkable size and beauty. Taking Morales and Pizarro to the summit of a wooden tower, he pointed proudly to a long vista of islands subject to his sway, and promised his new friends as many pearls as they might desire so long as they should continue to give him their friendship. Turning towards the mainland, which stretched away mountain upon mountain as far as the eye could reach, the communicative chief told his guests of a country of inexhaustible riches that lay in that direction. His words and suggestions were not lost upon one of the two men who listened to him. The _cacique_ further agreed to become the vassal of the king of Castile, and to pay him an annual tribute of one hundred pounds weight of pearls. The party then returned to the mainland at another point than that at which they had embarked, when Morales sent a detachment of ten men to conduct Peñalosa and his party from the village of _Tutibrá_.