Drake determined to get the assistance of these people, which was freely given, and he was enabled to traverse the pathless forest and to lie in wait for the train of mules carrying gold and silver from Panama to Nombre de Dios. This he captured, but, on account of the difficulties of the way, was obliged to leave the silver behind, and content himself with the gold. Then he attacked some merchants, burnt their goods to the value of two hundred thousand ducats, and got safely back to his ships just as the dilatory Spaniards sent out three hundred men for his capture. It was on this excursion that he saw the Great South Sea, and determined to carry English ships into that immense Spanish preserve. How he carried out his resolve, and appeared suddenly off the Peruvian coast five years later, is a story we must leave, as it belongs to another part of the new world. When Drake returned to Plymouth the news of his adventures, and the more substantial evidence of the gold he had brought, roused others to follow his example. Among them was one John Oxnam, or Oxenham, who has been immortalised by Kingsley in "Westward Ho!" Arriving at the isthmus in 1575, in a vessel of 140 tons, he went to an out-of-the-way river, and hid his bark among the great trees. Landing with his seventy men, he went in search of the Simerons, who took him to a river which flowed into the South Sea, where a pinnace was built. In this the English pulled down to the Pacific, with the intention of capturing one of the treasure ships coming to Panama. They succeeded so far as to get sixty thousand dollars in gold from one bark, and a hundred thousand from another. Not yet satisfied, they went to the Pearl Islands, attacked the negro divers, and took a few pearls, with which they at last returned up the river. Unfortunately for Oxenham the negroes of the Pearl Islands carried the news of his presence to Panama, and in two days four boats with a hundred men were sent in pursuit. They found the two barks, which had been released, and from their captains learnt where the Englishmen had gone. Following up the river they were at a loss when they came to three branches, but spying some freshly plucked feathers floating down one of the streams, they followed that until they came upon the pinnace. Six men were on guard, one of whom was killed, but the other five escaped and gave the alarm to their comrades. Pursuing their track through the forest the Spaniards found the store of treasure hidden away under boughs of trees. With this they would have gone back had not Oxenham attacked them with two hundred Simerons before they reached their boats. Being more skilful in bush fighting than the English, the Spaniards repulsed the party, killing eleven and taking seven prisoners, from whom they learnt that the delay was caused by the difficulty of transporting the treasure.