By the Hospital Lane goes the 'Faeries Path.' Every evening they travel from the hill to the sea, from the sea to the hill. At the sea end of their path stands a cottage. One night Mrs. Arbunathy, who lived there, left her door open, as she was expecting her son. Her husband was asleep by the fire; a tall man came in and sat beside him. After he had been sitting there for a while, the woman said, 'In the name of God, who are you?' He got up and went out, saying, 'Never leave the door open at this hour, or evil may come to you.' She woke her husband and told him. 'One of the good people has been with us,' said he. ("Village Ghosts")
W.B. Yeats, The Celtic Twilight: Faerie and Folklore
faery, fairy, fey, ghost, spirit