£10 Harry Potter book is to be sold at auction for £20,000

Optician Tim Tucker, 53, bought a first edition copy of Harry Potter and the Philosophers Stone when it first came out in 1998.

Now he is selling that book on auction and it is set to fetch £20,000!

To "The Mirror, UK" he said:

"My grandad told me to look after books. It's a good job I listened."