In the parsonage of Groben, says Hennings in Geister und Geisterschern, p. 802, the inhabitants were much disturbed in 1718 by the throwing of stones upon the roofs of the house and the outbuildings. The pastor, Heinisch, saw one day a stone in the court, which had not lain there before, rise up and strike on the roof of the stable, and stones fly out of the walls of the house and fall on the same roof, and yet no holes were left in the walls whence the stones flew.
Then began the disturbance in th ehouse. Stones flew upon the steps and against the door, and others flew from the stove against the room door. The stones flung outside the house were wet with rain. One day the throwing went on in three places at once. At length earthenware was broken in the night, a pot was carried away from under the hands of a maid, many panes were dashed out in full daylight, and a red hot tile out of the baking oven was thrown into the court.
Spiritual Magazine, January 1865.