On arriving at this island, he found the Huron and other allied tribes again preparing for an expedition against the Iroquois. With a view of gaining the friendship of the savages, and of acquiring a knowledge of the country, he injudiciously offered himself to join a quarrel in which he was in no wise concerned. The father Joseph Le Caron accompanied him, in the view of preparing the way for religious instruction, by making himself acquainted with the habits and language of the Indians. Champlain was appointed chief by the allies, but his savage followers rendered slight obedience to this authority. The expedition proved very disastrous: the Iroquois were strongly intrenched, and protected by a quantity of felled trees; their resistance proved successful; Champlain was wounded, and the allies were forced to retreat with shame and with heavy loss.
The respect of the Indians for the French was much diminished by this untoward failure; they refused to furnish Champlain with a promised guide to conduct him to Quebec, and he was obliged to pass the winter among them as an unwilling guest. He, however, made the best use of his time; he visited many of the principal Huron and Algonquin towns, even those as distant as Lake Nipissing, and succeeded in reconciling several neighboring nations. At the opening of the navigation, he gained over some of the Indians to his cause, and, finding that another expedition against the Iroquois was in preparation, embarked secretly and arrived at Quebec on the 11th of July, 1616, when he found that he and the father Joseph were supposed to have been dead long since. They both sailed for France soon after their return from among the Hurons.
In the following year, a signal service was rendered to the colony by a worthy priest named Duplessys: he had been engaged for some time at Three Rivers in the instruction of the savages, and had happily so far gained their esteem, that some of his pupils informed him of a conspiracy among all the neighboring Indian tribes for the utter destruction of the French; eight hundred chiefs and warriors had assembled to arrange the plan of action. Duplessys contrived, with consummate ability, to gain over some of the principal Indians to make advances toward a reconciliation with the white men, and, by degrees, succeeded in arranging a treaty, and in causing two chiefs to be given up as hostages for its observance.