Jacob Grimm and Wilhelm Grimm

“ But the children saw the three men in the distance, and the old Cook waddling behind them. Then said Lina: ‘Fundevogel, do not forsake me, and I will never forsake thee.’
And he said: ‘I will never forsake thee as long as I live.’
Lina said: ‘Thou must become a pond, and I will be the duck swimming upon it.’
When the Cook reached the pond, she lay down beside it to drink it up, but the duck swam quickly forward, seized her head with his bill and dragged her under water; so the old witch was drowned. ”

“ So I promised not to tell anybody, and she said that in the morning, when the father had gone out hunting, she would fill the kettle, and when it was boiling, she would throw thee into it and boil thee. ”