The Tiyanak is a creature from Philippine folklore, often described as a malevolent spirit that takes the form of a baby. According to legend, it is the soul of an unbaptized child who seeks revenge on those who wronged it in life. The Tiyanak is known to lure unsuspecting individuals by crying like an infant, only to reveal its true form when approached. In various stories, the Tiyanak is said to inhabit forests and remote areas, making it a popular subject in local horror tales. It is often depicted with sharp teeth and a grotesque appearance, emphasizing its role as a frightening figure in Philippine mythology.