The conjurers prepared their medicines, and night and morning before camp moved the drums beat furiously, "dancing lodges" were erected at every encampment, and the four orders of dancers took their turns. The "wood partridges," the "prairie chickens," "medicine rattlers," and the "kid foxes," each in turn to vocal and drum music went through their evolutions of movement. Sacrifices were got ready and consecrated, and amidst night and day alarms from the enemy, and all the necessary hunting for the maintenance of these camps, this work of preparation went on for days and sometimes weeks. And now the chosen spot is reached, which is accomplished almost at the same time, for the scouts and couriers have kept the different camps in touch, and the movement of each has been governed for the purpose of reaching the rendezvous about the same day. But this strange crowd is gathered for a specific purpose, and no time is lost. The conjurers and medicine-men convene in one part of the camp, the warriors in another; and while the priests and medicine-men intensify their petitions and incantations, the warriors go out to scout the country and search for a suitable tree to be used as the centre or "idol tree." A sharp watch is kept for the scouts, and when these are seen returning to camp the medicine-men form in procession with their chief (_pro tem._), the originator of this whole movement, at their head, and march through camp singing and incanting and speaking in unknown tongues. The chief medicine-man holds a big pipe with a sacred stem in his hands, and with this he points heavenward and earthward and all around, following the sun, and thus in solemn aspect and with dignified movement these high priests of an old faith march out of camp to meet the warriors. Now comes the crucial time for this chief medicine-man. If these warriors accept the pipe from him then the success of his venture is assured. But if they do not take the pipe as he offers it to them the whole scheme is a failure, and a new chief priest and a new location will have to be sought. No wonder it is a tense moment for the would-be high priest of this great gathering.