the tiyanak (also tianak or tianac) is a vampiric creature in philippine mythology that takes on the form of a toddler or baby. although there are various types, it typically takes the form of a newborn baby and cries in the jungle to attract unwary travelers. once it is picked up by an unfortunate passerby, it reverts to its true form and attacks the victim. the tiyanak is also depicted to take malevolent delight in leading travelers astray, or in abducting children.