The conquest of Thibet had brought the Chinese into contact with the bold and restless hill-tribes which occupy the region between China and India. South of the Himalaya range there existed several small mountain states, independent alike of Mogul and of British rule, and defiant in their mountain fastnesses of all the great surrounding powers. Of these small states the most important was Nepal, originally a single kingdom, but afterwards divided into three, which were in frequent hostility with one another. West of Nepal was a small clan, the Goorkhas, whose people were noted for their warlike daring. It is with these that we are here concerned. In 1760 the king of Bhatgaon, one of the divisions of Nepal, being threatened by his rival kings, begged aid from the Goorkha chief. It was readily given, and with such effect as to win the allies a signal triumph. The ease of his victory roused the ambition of Narayan, the leader of the Goorkhas, and by 1769 the three kings of Nepal were either slain or fugitives in India and their country had fallen under the dominion of its recently insignificant and little-considered neighbor. The Goorkhas differed essentially from the Nepalese in character. They despised commerce and disliked strangers. War was their trade, and their aggressions soon disturbed conditions along the whole Himalaya range. The flourishing trade which had once existed between India and Thibet by way of Nepal was brought to an end, while the raids of the dominant clan on neighboring powers excited general apprehension. Twenty years after their conquest of Nepal the incursions of the Goorkhas into Thibet became so serious as to demand the attention of the Chinese emperor, though no decided action was taken for their suppression. But in 1790 an event occurred that put a sudden end to this supine indifference. The temples and lamasaries of Thibet were widely believed to contain a great store of wealth, the reports of which proved highly alluring to the needy and daring warriors of the Goorkha clan. The Chinese had shown no disposition to defend Thibet, and this rich spoil seemed to lie at the mercy of any adventurous band strong enough to overcome local opposition. In consequence, the Goorkhas prepared for an invasion in force of the northern state, and, with an army of about eighteen thousand men, crossed the Himalayas by the lofty passes of Kirong and Kuti and rapidly advanced into the country beyond.