Troubles and highlights

Heidi is a girl who loves her mum but her mum keeps saying a word called "soof!" and Heidi really wants to know what it means and her mum can’t tell her because she only knows 23 words. The things that trouble Heidi is that she don’t know much about her past so she gets upset and she can’t ask anyone because no one know it. She wants to know about her granny, what soof means and things about so b. it which is her mum