A very good copy of Harry Potter and the Philosopher's Stone is for sale. It could sell for £10,000.

This book is very rare and was first sold in 1997 for £4.99. It has been kept in very good condition. A woman named Katrina got the book to review, but she never read it.

Katrina put the book in a box and forgot about it. She found it again and thought it might be worth something. The book could sell for £7,000 to £10,000.

Katrina got many books to review, but she kept this one. She is glad she did, because it is very valuable now.

Katrina was 24 when she got the book. She was working for a magazine in the Scottish Highlands.

Katrina forgot she had the book. When she found it, she was very surprised.

Finding the book felt strange. Katrina knew it was old and might be worth something.

It is rare to find something valuable in your own home. Katrina thinks the book should be with someone who really likes it.

Katrina was working in the Highlands when she got the book. The book has some mistakes, which makes it more valuable.

When the book was first sold, not many people wanted it. Only 500 hardback copies and 5,000 paperback copies were made.

The book was kept in a loft for almost 30 years. This helped keep it in very good condition.

A man named Jim has handled many rare books. He says this one is the best he has seen.

Many copies of the book were damaged, but this one is perfect. It is like new.

The book has all the signs of a first edition, which collectors love.

One mistake in the book is a missing 'o' on the back cover.

The book also says 'Hogwarts School of Wizardry and Witchcraft', which was later changed.

The back cover has two mistakes.

There is also a mistake on page 53, where a list of school supplies is repeated.

Jim says this is a very rare chance for Harry Potter fans to buy a very good copy of the book.

The book is being sold online, and people can bid on it until May 20.