The ruins are of late Inca pattern, not of a kind which would have required a long period to build. The unfinished building may have been under construction during the latter part of the reign of Titu Cusi. It was Titu Cusi's desire that Rodriguez de Figueroa should meet him at Pampaconas. The Inca evidently came from a Vilcabamba down in the montaña, and, as has been said, brought Rodriguez a present of a macaw and two hampers of peanuts, articles of trade still common at Conservidayoc. There appears to me every reason to believe that the ruins of Espiritu Pampa are those of one of the favorite residences of this Inca--the very Vilcabamba, in fact, where he spent his boyhood and from which he journeyed to meet Rodriguez in 1565. [13] In 1572, when Captain Garcia took up the pursuit of Tupac Amaru after the victory of Vilcabamba, the Inca fled "inland toward the valley of Sima-ponte ... to the country of the Mañaries Indians, a warlike tribe and his friends, where balsas and canoes were posted to save him and enable him to escape." There is now no valley in this vicinity called Simaponte, so far as we have been able to discover. The Mañaries Indians are said to have lived on the banks of the lower Urubamba. In order to reach their country Tupac Amaru probably went down the Pampaconas from Espiritu Pampa. From the "Pampa of Ghosts" to canoe navigation would have been but a short journey. Evidently his friends who helped him to escape were canoe-men. Captain Garcia gives an account of the pursuit of Tupac Amaru in which he says that, not deterred by the dangers of the jungle or the river, he constructed five rafts on which he put some of his soldiers and, accompanying them himself, went down the rapids, escaping death many times by swimming, until he arrived at a place called Momori, only to find that the Inca, learning of his approach, had gone farther into the woods. Nothing daunted, Garcia followed him, although he and his men now had to go on foot and barefooted, with hardly anything to eat, most of their provisions having been lost in the river, until they finally caught Tupac and his friends; a tragic ending to a terrible chase, hard on the white man and fatal for the Incas. It was with great regret that I was now unable to follow the Pampaconas River to its junction with the Urubamba. It seemed possible that the Pampaconas might be known as the Sirialo, or the Cori-beni, both of which were believed by Dr. Bowman's canoe-men to rise in the mountains of Vilcabamba. It was not, however, until the summer of 1915 that we were able definitely to learn that the Pampaconas was really a branch of the Cosireni. It seems likely that the Cosireni was once called the "Sima-ponte." Whether the Comberciato is the "Momori" is hard to say.