The spirits manifest their displeasure by sending sickness and other calamities. Hence in times of public misfortune, as when an epidemic is raging, and all other remedies have failed, the whole population go forth with the priest at their head to a place at some distance from the village. Here at sunset they erect a couple of poles with a cross-bar between them, to which they attach bags of rice, wooden models of pivot-guns, gongs, bracelets, and so on. Then, when everybody has taken his place at the poles and a death-like silence reigns, the priest lifts up his voice and addresses the spirits in their own language as follows: “Ho! ho! ho! ye evil spirits who dwell in the trees, ye evil spirits who live in the grottoes, ye evil spirits who lodge in the earth, we give you these pivot-guns, these gongs, etc. Let the sickness cease and not so many people die of it.” Then everybody runs home as fast as their legs can carry them.(320) (M86) In the island of Nias, when a man is seriously ill and other remedies have been tried in vain, the sorcerer proceeds to exorcise the devil who is causing the illness. A pole is set up in front of the house, and from the top of the pole a rope of palm-leaves is stretched to the roof of the house. Then the sorcerer mounts the roof with a pig, which he kills and allows to roll from the roof to the ground. The devil, anxious to get the pig, lets himself down hastily from the roof by the rope of palm-leaves, and a good spirit, invoked by the sorcerer, prevents him from climbing up again. If this remedy fails, it is believed that other devils must still be lurking in the house. So a general hunt is made after them. All the doors and windows in the house are closed, except a single dormer-window in the roof. The men, shut up in the house, hew and slash with their swords right and left to the clash of gongs and the rub-a-dub of drums. Terrified at this onslaught, the devils escape by the dormer-window, and sliding down the rope of palm-leaves take themselves off. As all the doors and windows, except the one in the roof, are shut, the devils cannot get into the house again. In the case of an epidemic, the proceedings are similar. All the gates of the village, except one, are closed; every voice is raised, every gong and drum beaten, every sword brandished. Thus the devils are driven out and the last gate is shut behind them. For eight days thereafter the village is in a state of siege, no one being allowed to enter it.(321)