Shtriga, called also striga or strix, is on of the most dangerous and fearsome undead creatures witchers have to face. The shtrigas' origin is still a mystery, although it seems to be some kind of powerful curse that turns dead females into monsters. Some people say that evil, cruel and wicked women � like witches or murderers � have a chance to become shtrigas. Others claim that the curse affects all prematurely dead children who are a result of adultery or incest. One thing is certain: every full moon, the female undead will rise from the grave to prey on the living. There is also a myth that if some fearless daredevil spends an entire night in a shtriga's tomb, the curse will end and the monster will be turned back into a living woman. But even the most powerful witchers don't dare to do this and simply prefer to kill the monster as quick as possible. However there is a tale about one Witcher, called White Wolf, who disenchanted the daughter of a king.