The red shoes

I read “The red shoes”.
A poor girl whose name Karen lived with her sick mother. But, her mother died and, she was adopted by old lady. One day, she found beautiful red shoes, and bought it without telling old lady. After that, she couldn’t stop dancing because of magic, and attend the funeral of the old lady. After all, she had her lags cut off, but her legs kept moving and irritating her.
I felt very scared.