De Soto continued his explorations in the interior for some time, and discovered a very magnificent highway, leading to the capital of the empire. It was smoothly paved with flat blocks of stone, or with cement harder than stone. He returned to San Miguel with the report of his discoveries, and quite richly laden with the gold which he had received as a present from the natives, or which he had seized as what he considered the lawful spoils of war. The sight of the gold inspired all the Spaniards at San Miguel with the intense desire to press forward into a field which promised so rich a harvest. It was ascertained that the Inca had command of an army of over fifty thousand men. Pizarro, leaving sixty men in garrison at San Miguel, set out with one hundred and ninety men to visit the Inca in his capital. De Soto accompanied him. It was not ostensibly a military expedition, seeking the conquest of the country, or moving with any hostile intent whatever. De Soto had a conscience; Pizarro had none. Whatever reproaches might arise in the mind of De Soto in reference to the course he was pursuing, he silenced them by the very plausible assumption that he was an ambassador from the king of Spain, commissioned to make a friendly visit to the monarch of another newly-discovered empire; that he was the messenger of peace seeking to unite the two kingdoms in friendly relations with each other for their mutual benefit. This was probably the real feeling of De Soto. The expedition was commissioned by the king of Spain. The armed retinue was only such as became the ambassadors of a great monarch. Such an expedition was in every respect desirable. The fault--perhaps we ought in candor to say the calamity--of De Soto was in allowing himself to be attached to an expedition under a man so thoroughly reckless and unprincipled as he knew Pizarro to have been. Perhaps he hoped to control the actions of his ignorant and fanatic superior officer. It is quite manifest that De Soto did exert a very powerful influence in giving shape to the expedition. An Indian courier was sent forward to Cuzco, one of the capitals of the Peruvian monarch, with a friendly and almost an obsequious message to the Inca, whose name was Attahuallapa. The courier bore the communication that Pizarro was an ambassador commissioned by the king of Spain to visit the king of Peru, and to kiss his hand in token of peace and fraternity. He therefore solicited that protection in passing through the country which every monarch is bound to render to the representatives of a foreign and friendly power.