If a man goes to see his sick father or mother he takes a piece of mutton fat, and the sick parent ceremonially spits on it and the visitor rubs the piece of fat covered with saliva on his navel.

A married woman can impose a kirume, but not on an unmarried woman. The following is an example of a case in which a married woman may invoke this curse: [[150]]

If a married woman has for a long time been systematically ill-treated by a brutal husband she can, when dying, put a kirume on her father for having forced her to marry such a bad man, and also upon her husband for his brutality.

The kirume is looked upon as the severest form of thahu or nzahu known; in most cases of thahu the subject rarely dies, because it is slow in its action and the patient has an opportunity of making reparation and seeking relief from the prescribed medicine man or elders, but in the case of a kirume the curse is very swift in its action, the patient rapidly sickens, breaks out into ulcers and often dies before he can arrange to take measures to arrest its onslaught; his live stock will also die mysteriously.

It is believed that the effective power of the kirume is derived from the spirit (ngoma) of the deceased person by whom it is imposed, assisted by the ngoma of the ancestors of the family.

It is said that there is no poison without its antidote, and the same applies to the kirume, but the antidote must be applied in good time and the only persons who can effect a cure are certain persons called athuri ya ukuu. The athuri ya ukuu compose a grade of elders above that of athuri ya mburi nne (elders of four goats—referring to the fee they pay for initiation to the grade). They are always old men and rich, and have to pay to their fellow elders of the grade a bullock and a male sheep or goat as initiation fees.

While the athuri ya mburi nne form the ordinary kiama, or council of elders, the athuri ya ukuu constitute a native court of appeal, but they do not admit appeals except in very important cases, when it is within their competence to revise a judgment and, if they consider fit, reduce the amount of compensation. It is also the duty of the athuri ya ukuu to instruct the heir in the customs of the tribe when he succeeds to the property after his father’s death.

The athuri ya ukuu do not treat ordinary [[151]]cases of thahu but have to be called in for cases of kirume.

The ceremonial connected with the removal of a kirume is as follows; it is called ku-tahikia kirume in Kikuyu, which means “to purify from the kirume.”

The athuri ya ukuu are summoned to the patient’s village, and the day before the ceremony the elders catch a mole-like rodent called huku (Tachyoryctes sp.), put it alive in a cooking pot with some sweet potatoes, and cork up the mouth of the pot. The huku must be caught near the patient’s village. Next morning the athuri ya ukuu arrive with a medicine man belonging to another clan and a male sheep is killed; the elders then take the huku out of the pot and make passes all over the patient’s body with the live animal and now take the huku and samples of various kinds of native food, beads, etc., and proceed to the place where the corpse of the person who imposed the kirume has been buried or thrown out. Another sheep is taken with this party and also a small cooking pot; upon reaching the spot referred to the second sheep is killed and some of its fat is cooked in the pot. They then dig a hole and pour the fat in it, also milk, honey, beer, etc.; they smear the huku with the tatha, or stomach contents of the sheep, and the medicine man ties a tiny piece of meat to the right and left foreleg of the animal with a string made of mugeri (hibiscus) fibre, then fastening it up in a rough net made of the roots of the ruriera plant, and cuts the face off the sacrificial sheep, leaving the eyes intact, and places them all in the hole saying, “Go back to your burrow and take with you the spirit of the person who left this curse.” The hole is then filled in. The medicine man eats the remainder of the meat and afterwards returns to the village and purifies it.