La Salle took advantage of the opportunity to assure his hosts that if the Iroquois attacked them, he would stand by them, give them guns, and fight for them. Then he shrewdly added that he intended building a fort among them and a big wooden canoe in which he would descend to the sea and bring goods for them. All this looked very plausible and won their hearts. The next day La Salle and his companions were invited to a feast and, of course, went. The host seized the opportunity of warning them against descending the Great Water. He told them that its banks were infested by ferocious tribes and its waters full of serpents, alligators, dangerous rocks, and whirlpools; in short, that they never would reach the ocean alive. {240} This harangue was interpreted to La Salle's men by two _coureurs de bois_ who understood every word of it. La Salle saw dismay overspreading the faces of his already disheartened men. But when his turn came to speak, he gave the Indians a genuine surprise. "We were not asleep," he said, "when the messenger of my enemies told you that we were spies of the Iroquois. We know all his lies and that the presents he brought you are at this moment buried in the earth under this lodge." This proof of what seemed more than human sagacity overwhelmed the Indians, and they had nothing more to say, little dreaming that La Salle had received secret information from a friendly chief. Nevertheless, the next morning, when La Salle looked about for his sentinels, not one of them was to be seen. Six of his men, including two of the best carpenters, upon whom he depended for building the vessel, had deserted. To withdraw his men from the demoralizing influences of the Indian camp, La Salle chose a naturally strong position at some distance down the river, fortified it, and built lodgings for the men, together with a house for the friars. This, the first habitation reared by white men in the {241} territory now comprised in the State of Illinois, stood a little below the site of Peoria and was called Fort Crevecoeur. This name, Fort Break-Heart, was taken from that of a celebrated fortification in Europe. It was to be a heart-breaker to the enemy. La Salle believed in the doctrine of work as the best preventive of low spirits, and he kept his men at it. No sooner was the fort finished than he began to build the vessel. Two of his carpenters, we remember, had deserted. "Seeing," he says, "that if I should wait to get others from Montreal, I should lose a whole year, I said one day before my people that I was so vexed to find that the absence of two sawyers would defeat my plans, that I was resolved to try to saw the planks myself, if I could find a single man who would help me with a will." Two men stepped forward and said they would try what they could do. The result was that the work was begun and was pushed along so successfully that within two weeks the hull of the vessel was half finished.