The Tale of Mrs Tiggy-Winkle was written by Beatrix Potter.
It tells the tale of a hidden home high in the hills. It is discovered one day by a little girl called Lucie, who is in search of her missing pocket handkerchiefs. She knocks on the tiny door, and meets Mrs Tiggy-winkle who does all the washing and ironing for the neighbouring animals. Lucie spends a lovely day helping her, and it's only right at the end of the day that she realises Mrs Tiggy-winkle is a hedgehog!