While at this fort, a rumour had reached him of a mighty river flowing into the great ocean. Credulous of the truth of this report, borne to him by the Indians, Verandrye lost little time in communicating it to a friend, Father de Gonor, at Michilimackinac. It was shortly thereafter carried to Governor Beauharnois, who was induced, but not without much pleading, to grant Verandrye fifty men and a missionary for the purposes of exploration. But, although he had thus far succeeded, the only pecuniary aid upon which the explorer could rely was from the fur-trade. He was accordingly given a license to trade, and on the strength of this concession, certain merchants advanced him an outfit. He set out and arrived at Rainy Lake in September, 1731, traversed it, and erected a fort near the site of the present Fort Francis of a later day, to which he gave the name of St. Peter. A year later he built another fort on the western shore of the Lake of the Woods, and in 1733 paddled down to the mouth of the Winnipeg River to the lake of that name. Crossing Lake Winnipeg, he ascended the Assiniboine River and constructed Fort Rouge.[55] In 1738 the explorer's three sons, under their sire's instructions, made their way up the Assiniboine and built Fort la Reine, on the site of the present Portage la Prairie. Well may it be said that the five years from 1733 to 1738 were years of cruel grief and disappointment for Verandrye. He had been struggling on to a realization of his dream in spite of the bitterest discouragements. One of his sons had been slain by the Sioux; he was without funds; fur-trading being with him only a subsidiary employment. His men lacking both courage and faith became unmanageable, and Verandrye addressed the most affecting letters to his monarch in France, who looked upon him and his schemes coldly. Those merchants, who had advanced him money, loaded him with their distrust, perpetually harassed him for returns, and loudly demanded his recall, so that he was forced to stand still and engage in barter when his whole soul cried aloud for him to press on in his path and reach the Pacific. [Sidenote: Verandrye's son reaches the Rockies.]