It had been from the beginning an ulterior object of the French in making a settlement in North America to discover a northwest passage by water to the Pacific Ocean. Whoever should make this discovery would, by diminishing the distance to the markets of the East Indies, confer a boon of untold commercial value upon his country, and earn for himself an imperishable fame. This day-dream of all the old navigators had haunted the mind of Champlain from the first. Every indication which pointed in that direction was carefully considered. Nicholas de Vignau, one of the interpreters who had passed a winter with the Algonquins on the upper waters of the Ottawa, returned to France in 1613. Having heard doubtless something of the disastrous voyage of Henry Hudson to the bay which bears his name, he manufactured a fine story, all of which was spun from his own brain, but was nevertheless well adapted to make a strong impression on the mind of Champlain and others interested in this question. This bold impostor stated that while with the Algonquins he had made an excursion to the north, and had discovered a sea of salt water; that he had seen on its shores the wreck of an English ship from which eighty men had been taken and slain by the savages, and that the Indians had retained an English boy to present to Champlain when he should visit them. Although the story was plausible, Vignau was cross-examined, and put to various tests, and finally made to certify to the truth of his statement before notaries at La Rochelle. Champlain laid the statement before the Chancellor de Sillery, the President Jeannin, and the Marshal de Brissac, and by them was strongly advised to ascertain the truth of the story by a personal exploration. He therefore resolved to make this a prominent feature of the summer’s work. Accordingly, with two bark canoes, provisions and arms, an Indian guide and four Frenchmen, including De Vignau, Champlain proceeded up the Ottawa. This river is distinguished by its numerous rapids and falls, many of them impassable even by the light canoe;[381] and at that time the shores were lined with dense and tangled forests, which could only be penetrated with the utmost difficulty. After incredible fatigue and hunger, the party at length arrived at Alumet Island, where they were kindly received by the chief of the Indian settlement. Here De Vignau had passed a previous winter, and was now obliged to confess his base and shameless falsehood. The indignation of Champlain, as well as his disappointment, can well be comprehended. He bore himself, however, with calmness, and restrained the savages from taking the life of De Vignau, which they were anxious to do for his audacious mendacity.