The Wolf and the Seven Kids by Jacob and Wilhelm Grimm

There was once an old Nanny-goat who had seven Kids, and she was just as fond of them as a mother of her children. One day she was going into the woods to fetch some food for them, so she called them all up to her, and said --

'My dear children, I am going out into the woods. Beware of the Wolf! If once he gets into the house, he will eat you up, skin, and hair, and all. The rascal often disguises himself, but you will know him by his rough voice and his black feet.'