During the evening the old men held a secret council. Some of them proposed to murder the strangers, and seize their effects. The chief, however, overruled this advice, and, sending for Father Marquette and M. Joliet, invited them to attend a dance of the calumet, which he afterwards presented to them as a sign of peace. The good Father and his companions began now to consider what further course they should pursue. As it was supposed that the Gulf of Mexico extended as far north as thirty-one degrees and forty minutes, they believed themselves not to be more than two or three days' journey from it,[136-23] and it appeared to them certain, that the Mississippi must empty itself into that gulf, and not into the sea through Virginia, at the eastward, because the coast of Virginia was in the latitude of thirty-four degrees, at which they had already arrived; nor yet into the Gulf of California, at the southwest, because they had found the course of the river to be invariably south. Being thus persuaded that the main object of their expedition was attained; and considering, moreover, that they were unable to resist the armed savages, who infested the lower parts of the river, and that, should they fall into the hands of the Spaniards, the fruits of their voyage and discoveries would be lost, they resolved to proceed no further, and, having informed the natives of their determination and rested another day, they prepared for their return. [Illustration: AT THE PORTAGE] After a month's navigation on the Mississippi, having followed its course from the forty-second to the thirty-fourth degree of latitude, they left the village of Akamsca, on the 17th of July, to return up the river. They retraced their way, slowly ascending the stream, until, in about the thirty-eighth degree of latitude, they turned into another river (Illinois), which abridged their route and brought them directly to Lake _Illinois_ (Michigan). They were struck with the fertility of the country through which that river flowed, the beauty of the forests and prairies, the variety of the game, and the numerous small lakes and streams which they saw. The river was broad and deep, and navigable for sixty-five leagues, there being, in the season of spring and part of the summer, only half a league of portage between its waters and those flowing into Lake Illinois. On its banks they found a village, the inhabitants of which received them kindly, and, on their departure, extorted a promise from Father Marquette to return and instruct them.[138-24] One of the chiefs, accompanied by the young men, conducted them as far as the lake; whence they proceeded to the Bay of Puans, where they arrived near the end of September, having been absent about four months.[138-25] [Illustration: ON THE MISSISSIPPI]