Drekavac

In Slavic mythology the drekavac appears as a very scary looking demon that in reality is the ghost of an unbaptized childs soul. Its appearance varies depending on who sees it since it is so horrifying that few can stare at it long enough to give a proper description. The creepiest description so far is without a doubt the one where the drekavac appears in the form of an undead child who begs and calls for people passing near the cemetery to baptize it. In later Slavic traditions the drekavac is connected with Christmas, specifically the twelve days of Christmas during which it is believed that when a drekavac appears in a childs form it usually announces someones death.