 According to legend, the invunche is a first-born son less than nine days old that was kidnapped by, or sold by his parents, to a Brujo Chilote (a type of sorcerer or warlock of Chiloé).If the baby had been christened, the warlock debaptizes him.The Brujo chilote transforms the child into a deformed hairy monster by breaking his right leg and twisting it over his back.