The secret commonwealth: of elves, fauns, and fairies

Late in the 17th century, Robert Kirk, an Episcopalian minister in the Scottish Highlands, set out to collect his parishioners' many striking stories about elves, fairies, fauns, doppelgangers, wraiths and other beings of, in Kirk's words, 'a middle nature betwixt man and angel'.

For Kirk these stories constituted strong evidence for the reality of a supernatural world, existing parallel to ours, which, he passionately believed demanded exploration as much as the New World across the seas.