John Thackray Bunce, Fairy Tales: Their Origin and Meaning (1878)
“ But there is one little story of the Danish Nis—who answers to the German Kobold—which I may tell you, because it is like the story of Hodêken which you have just read, and shows that the creatures were of the same kind. There was a Nis in Jutland who was very much teased by a mischievous boy. When the Nis had done his work he sat down to have his supper, and he found that the boy had been playing tricks with his porridge and made it unpleasant. So he made up his mind to be revenged, and he did it in this way. The boy slept with a servant-man in the loft. ”
