The people dance all night. There is no light in the sweat-house; the place is very hot, though there is no fire there. Next day those to whom spirits have come tell the doctors and chief what spirits are with them. If not, the chief may give them food offensive to the spirits, and the spirits would kill them if they ate. Some spirits may stay two or three days with a person, who would then sit inside all the time. The old doctors have to ask this spirit what it wishes, and make it go away for a time, so that the person possessed may eat something. Each spirit has its own kind of food. If we give a man something that the spirit has never eaten, it will kill him right away if he eats. The old doctors ask his spirit what it wants, and it tells. The salmon spirit, for instance, likes leaves or water; a sucker of the mountains would eat mountain pine nuts, but a valley sucker needs nuts off the digger pine. If strange food is placed before a spirit, it is afraid; and if the man possessed eats this food, the spirit will kill him. Some spirits don't like buckskin, and the man to whom they have come must not wear it. The bad spirits are numerous; the sucker is one of these, and so is Kele (the mountain wolf). This wolf is dangerous; it may hurt you in this way: you may think that you see a good-looking man or woman on the mountain or in the woods. If you go toward this person or this person comes toward you, comes near you, speaks to you, and you agree with it, the next thing you know this strange man or woman turns into a wolf, runs away, and your mind is gone; the wolf has taken it. The sucker does the same, but disappears before your eyes or turns into something ugly. There are three causes of sickness. The first is when a good yapaitu spirit is angry with a man and strikes him with his spirit point; second, when a bad spirit puts his missile in a man and makes him sick (the spirit in this case does it at his own instance); third, when an evil spirit sends his missile into a man at the request or prayer of a doctor. When the dokos or missile that has been sent into a man is drawn out by the spirit which assists the curing doctor, the doctor forces the dokos to tell what yapaitu sent it, and at the prayer of what doctor. But the dokos does not tell the truth in every case, and sometimes accuses the wrong person. It is very difficult, therefore, to know surely what doctor is guilty of making a man sick. A doctor, if the spirit is in him when he comes to see a sick man, is able to look right through the body of the patient and see where the dokos lies. Sometimes he is not able to draw it out; he can see where the dokos is, that is all; but if his spirit were stronger than the one who put it there, he could draw it out and cure the patient.