this momentous crisis the Inca shouted a few words of encouragement and dashed into the thickest of the fight, closely followed by his Orejones. With renewed vigour all his troops rallied, and at length the gallant enemy turned and fled. Chuchi Ccapac was taken prisoner, and Pachacuti entered Hatun-colla in triumph. There he remained until all the confederate tribes were reduced to submission. An Inca viceroy was appointed to govern the Collao, with the necessary garrisons, and Pachacuti returned to Cuzco.
Colla-suyu was not, however, to be subdued in one campaign. A few years afterwards the sons of Chuchi Ccapac escaped, and raised the standard of revolt. The confederate tribes rallied round them. This time the battle took place further north, and the Collas were again defeated with great slaughter, near Lampa. Pachacuti returned to Cuzco, but two of his very able sons, Tupac Ayar Manco and Apu Paucar Usnu, remained to pacify the country, and to extend the conquest southwards over the countries of the Charcas and Chichas.
After the accession of Inca Tupac Yupanqui, the Collas rebelled once more to secure their freedom. They had constructed four strong places, all in the Colla country, to the north of Lake Titicaca, at Llallahua, Asillo, Arapa (on a small lake), and Pucara, an isolated rocky mountain rising out of the plain to a great height. The Inca generals were occupied for several years in reducing these
