The resources of the three partners were so limited at this time, that they could only get together three small ships and 124 soldiers, of whom thirty-six were horse-soldiers; the expedition set out in February, 1531, under the command of Pizarro and his four brothers, whilst Almagro remained at Panama to organize an expedition of supplies. At the end of thirteen days' sailing, and after having been carried by a storm 300 miles more to the south than he had intended, Pizarro was forced to disembark both men and horses on the shores of the Bay of San Mateo, and to follow the line of the coast on land. This march was a difficult one in a very mountainous country, thinly-peopled, and intersected by rivers which had to be crossed at their mouths. At last a place called Coaqui was reached, where was found a great booty, which decided Pizarro to send back two of his ships. They carried to Panama and Nicaragua spoils to the amount of 30,000 _castellanos_, as well as a great number of emeralds, a rich booty, which would, according to Pizarro, determine many adventurers to come and join him. Then the conqueror continued his march southwards as far as Porto-Viejo, where he was joined by Sebastian Benalcazar and Juan Fernandez, who brought him twelve horsemen and thirty foot-soldiers. The effect which had been produced in Mexico by the sight of the horses and the reports of the fire-arms was repeated in Peru, and Pizarro was able to reach the Island of Puna in the Gulf of Guayaquil without encountering any resistance. But the islanders were more numerous and more warlike than their brothers of the mainland, and for six months they valiantly resisted all the attacks of the Spaniards. Although Pizarro had received some aid from Nicaragua, brought by Ferdinand de Soto, and although he had beheaded the cacique Tonalla and sixteen of the principal chiefs, he could not overcome their resistance. He was, therefore, obliged to regain the continent, where the maladies peculiar to the country tried his companions so cruelly, that he was forced to stay three months at Tumbez, exposed to the perpetual attacks of the natives. From Tumbez he went next to the Rio Puira, discovered the harbour of Payta, the best on this coast, and founded the colony of San-Miguel, at the mouth of the Chilo, in order that vessels coming from Panama might find a safe shelter. It was here that Pizarro received some envoys from Huascar, who informed him of the revolt of Atahualpa, the brother of Huascar, and asked his aid.