As far as such research examines the historical or contemporary stories of the poltergeist, it touches on fairies: because the Irish, for example, attribute to the agency of fairies the modern poltergeist phenomena, whether these, in each case, be fraudulent or, up to now, be unexplained.
"The Fairy-Faith in Celtic Countries"
W. Y. Evans Wentz
Amongst the numerous anecdotes of a supernatural character told by "Dr. Martin" is one of a "poltergeist," or "Robin Goodfellow," who was exorcised by two monks from the guest-chamber of an inn, and who offered his services to them in the monastery.
"German Culture Past and Present"
Ernest Belfort Bax
The Transfiguration of the Lama and the tricks of the poltergeist are evidently no affairs of ours; we raise an uninterested eyebrow and pass on-to poetry or to statistics.
"The Great Return"
Arthur Machen