As soon as Viracocha Inca had despatched the messenger, he ordered the camp to be raised, and a march to be undertaken in the direction of Caitomarca. Advancing by the road, they arrived at a river, where the Inca ordered a halt for rest. Being in this place, the messenger arrived, who reported how those of Caitomarca had mocked at him, and how they had said that they felt no fear of the Incas. When this message was understood by the Inca Virracocha, he rose up on the litter with great anger, ordering the troops to advance with all speed. This was done, until they came to a large and rapid river, which I believe must have been the river of Yucay. Here the Inca ordered his tents to be pitched, intending to attack the enemy's town on the other side; but the current was so strong that this was not possible. Those of Caitomarca came to the river side, whence they hurled many stones from their slings at the Inca's camp, and began to utter cries and great shouts. For it is a strange custom with these people, when they fight with each other, how little they allow their mouths to rest.

For two days the Inca was on the banks of that river without being able to cross it, for there was no bridge; nor is it clear whether they had those which are now in use before the time of the Incas: some say that they had them, while others maintain the contrary.