Puca is a creature from Irish folklore, often depicted as a mischievous spirit or fairy. It is known for its ability to shape-shift into various forms, including animals like a goat or a horse. The Puca is said to bring both good and bad fortune, depending on its mood and the treatment it receives from humans. Traditionally, the Puca is associated with the harvest season and is believed to roam the countryside at night. People would leave offerings to appease the Puca, hoping to gain its favor and ensure a bountiful harvest. Its unpredictable nature makes it a fascinating figure in Irish mythology.