A Puca (Pooka) is a mischievous spirit from Irish folklore. It is often portrayed as taking the form of an animal, such as a rabbit or a horse, or a beautiful young woman or handsome young man. The Puca is also well known for playing tricks on humans. In some stories, the Puca is said to be a benign but mischievous presence, while in others it is portrayed as more malevolent, with the ability to bring harm to those who cross its path. The Puca is also associated with the Otherworld, a realm of magic and mystery in Irish mythology.