A handwritten letter from Beatrix Potter to a young fan has made £8,500 ($12,027) at International Autograph Auctions.
It dates to 1808 and includes several small illustrations of rabbits and mice.
She writes: "I have been trying dreadfully hard to think about another story about Peter. I thinked and thinked and thinked last year; but I didn't think enough to fill a book!
"So I made a story about Jemima Puddleduck instead - and it will be in the shops very soon. I hope you will like it."
Please sign up to our free newsletter to receive exciting news about autograph auctions.