Thomas Keightley (1789–1872) was an Irish writer best known for his works on mythology and folklore. Fairy Mythology published in 1928 gained the world popularity and was reprinted as The World Guide to Gnomes, Fairies, Elves, and Other Little People. Regarded as a pioneer in the study of Folklore by modern scholars in the field, he was one of the early collectors of folklore.
“The Tale of Elidurus” has a legendary foundation of appearing. The scene of the tale is that Vale of Neath, already named as a famous centre of fairyland. Elidurus, when a youth of twelve years, 'in order to avoid the severity of his preceptor,' ran away from school, 'and concealed himself under the hollow bank of a river. After he had fasted in that situation for two days, 'two little men of pigmy stature appeared to him,' and said, 'If you will go with us, we will lead you into a country full of delights and sports.' If you want to know his future and the rest of the story read it till the end.