With this ship he set forth from Jamaica to cruise on the coasts of Campechy, in which voyage he took several ships, with which he returned triumphant. Here he found an old pirate, named Mansvelt (whom we have already mentioned), busied in equipping a considerable fleet, with design to land on the continent, and pillage whatever he could. Mansvelt seeing Captain Morgan return with so many prizes, judged him to be a man of courage, and chose him for his vice-admiral in that expedition: thus having fitted out fifteen ships, great and small, they sailed from Jamaica with five hundred men, Walloons and French. This fleet arrived, not long after, at the isle of St. Catherine, near the continent of Costa Rica, latitude 12 deg. 30 min. and distant thirty-five leagues from the river Chagre. Here they made their first descent, landing most of their men, who soon forced the garrison that kept the island to surrender all the forts and castles thereof; which they instantly demolished, except one, wherein they placed a hundred men of their own party, and all the slaves they had taken from the Spaniards: with the rest of their men they marched to another small island, so near St. Catherine's, that with a bridge they made in a few days, they passed thither, taking with them all the ordnance they had taken on the great island. Having ruined with fire and sword both the islands, leaving necessary orders at the said castle, they put to sea again, with their Spanish prisoners; yet these they set ashore not long after, on the firm land, near Puerto Velo: then they cruised on Costa Rica, till they came to the river Colla, designing to pillage all the towns in those parts, thence to pass to the village of Nata, to do the same. The governor of Panama, on advice of their arrival, and of the hostilities they committed, thought it his duty to meet them with a body of men. His coming caused the pirates to retire suddenly, seeing the whole country was alarmed, and that their designs were known, and consequently defeated at that time. Hereupon, they returned to St. Catherine's, to visit the hundred men they left in garrison there. The governor of these men was a Frenchman, named Le Sieur Simon, who behaved himself very well in that charge, while Mansvelt was absent, having put the great island in a very good posture of defence, and the little one he had caused to be cultivated with many fertile plantations, sufficient to revictual the whole fleet, not only for the present, but also for a new voyage. Mansvelt was very much bent to keep the two islands in perpetual possession, being very commodiously situated for the pirates; being so near the Spanish dominions, and easily defended.