Grimms' fairy tales

There once lived a girl who had three brothers. The boys meant everything to their mother, and the girl was always put at a disadvantage and treated badly. Every day she had to go out to a barren heath to dig peat, which was used for cooking and heating. A dull old tool was all she had for that nasty work. The little girl had an admirer, an elf who lived in a hill near her mother's house. Whenever she passed by that hill, the elf would stretch his hand out of a boulder and ...