"Being associated with a ceann féile (cheif festival), May Eve and May Day were supposed to be times of greater than usual activity among supernatural beings, Every lios ("fairy fort") in Ireland was said to be opened that night, and their inhabitants moved abroad in great numbers, often changing residence at that time." – Seán Ó Súilleabháin, ‘Nósanna agua Piseoga na nGael’
Hawthorn in the…