At length the disconsolate wanderers emerged on the banks of a broad river, the Napo, one of the great tributaries of the Amazon, issuing from the northern Andes to seek a home in the bosom of that mighty stream. Gladdened by the sight, they followed its banks downward, hoping in this way to find an easier route. Thickets still beset their way, through which it needed all their strength to open a passage, and after going a considerable distance a loud and increasing noise met their ears. For miles they followed it as it gradually rose into a roar, and at length they reached a place where the stream rushed furiously down steep rapids, and at the end poured in a vast volume of foam down a magnificent cataract, twelve hundred feet in depth. This was the height of the fall as measured by the eyes of the wanderers, a guide not much to be relied on. The stream itself had narrowed until it was at this point not more than twenty feet wide, and the hungry wanderers determined to cross it, with the hope of finding beyond it a country yielding more food. A bridge was constructed by felling great trees across the chasm, the water here running through vertical walls several hundred feet in depth. Over this rude bridge men and horses made their way, only one Spaniard being lost by tumbling down the giddy depth. The country beyond the stream proved no better than that they had left, and the only signs of inhabitants they met were savage and hostile tribes of Indians, with whom they kept up a steady skirmish. Some of the more friendly told them that the fruitful land they sought was but a few days’ journey down the river, and they went wearily on, day by day, as the promised land still fled before their feet. Doubtless they were led by their own desires to misinterpret the words of the Indians. In the end Gonzalo Pizarro decided on building a vessel large enough to carry the baggage and the men too weak to walk. Timber was superabundant. The shoes of horses that had died or had been killed for food were wrought into nails. Pitch was obtained from gum-yielding trees. In place of oakum the tattered garments of the soldiers were used. It took two months to complete the difficult task, at the end of which time a rude but strong brigantine was ready, the first vessel larger than an Indian canoe that ever floated on the mighty waters of Brazil. It was large enough to carry half the Spaniards that remained alive after their months of terrible travel.