The legend of Nahuales

Nahuales are Aztec warlock and exist since prehispanic times. Commonly, they live in rural communities or hills, but come from the South of Mexico. They are old and ugly warlock with devilish look. Only at night can be transformed. They are transformed in different animals like donkeys, snakes, wolves or coyotes; although it's more normal to transformed into a big black dog. Hide in thickets or in the deep forest to attack their victims. People say that they attack children to suck their blood, lonely travelers to steal, lonely women to violate them and to his enemies.