Xinolemoni: children's story

At the steep slope of a rough mountain, a sour witch resides. Her name suits her perfectly: She is called Vinnie Vinegarity! She drinks nothing but vinegar -preferrebly balsamico- and eats nothing but sour soups. Everyday she swims into her pool that's filled with sour juice, in order to keep herself fit and sour. Vinnie Vinegarity's sole purpose is to create a magic portion to turn the seas, the lakes and the rivers of the whole world into vinegar! But she needs a secret ingredient for her recipe. And that's the first bitter tear that seven mothers will shed, when they lose their children. Vinnie Vinegarity sets out her extremely sour plan. But the children she abducts, have a different opinion!