When the Inca arrived in that valley, he found it to be so beautiful and so extensive, that he rejoiced greatly. He praised the customs of the natives, and with loving words he asked them to adopt such of the customs of Cuzco as fitted with their own. They were well content, and obeyed him in all things. Having made all suitable arrangements, he went back to Yca, whence he marched to the valley called Huarco,[226] because he heard that the people were waiting for him in warlike guise. This, indeed, was the truth, for the natives of that valley, despising their neighbours for having submitted to a strange king without reason, and given up possession of their lands to him, had assembled with great resolution, and had erected strong forts or _pucaras_ within their boundaries, near the sea shore. Here they put their women and children. The Inca, marching with his army in battle array, came in sight of the enemy, and sent ambassadors with menaces and threats. They, however, would not adopt the rule of their neighbours, which was to submit to strangers, but prepared for war. As the summer was approaching, and the heat was great, the soldiers of the Inca fell sick, which induced him to retire as cautiously as possible. The Huarcos came forth from their valley, collected their harvests, and sowed their fields. They also got their arms ready, that they might be ready to receive the people of Cuzco, if they again came to attack them.
Tupac Inca returned to Cuzco; and as men have little constancy, when they saw that the Huarcos remained in possession of their liberties, there began to be changes among them, while some rebelled and threw off the yoke of the Inca. These were natives of the valleys on the sea coast. All this came to the knowledge of the king, and during the remainder of that summer he was engaged in assembling troops, and sending Orejones to visit the provinces in all parts of the empire. He was resolved to gain the lordship of Huarco, even if it should cost very dear. When autumn was come, and the heats of summer were passed, he descended to the coast with the largest army that he could collect. He sent ambassadors into the valleys, upbraiding the people for their weakness of purpose in presuming to rise against him, urging them to be firm in their friendship henceforward, for that if not, they would be visited by cruel war. When he reached the borders of the valley of Huarco, on the skirts of a mountain, he ordered a city to be founded, to which he gave the name of Cuzco, intending it to be his principal residence. The streets, and hills, and open square received the same names as those of the real city. He said that until Huarco was conquered, and the people had become his subjects, he would remain in that place, and that a garrison should always be maintained there. When his directions had been carried out, he advanced with his troops in the direction of the enemy, and surrounded their position. He was so firm in his purpose, that he never sent any one to treat with them; but carried on the war, which was so obstinate, that, they say, it lasted for three years. In the summers the Inca went to Cuzco, leaving a garrison in the new Cuzco that he had built, so that there might always be troops opposed to the enemy.