Books are printed in groups, and the first group printed are all called first editions. The book that was sold was not only a first edition, but also signed by author JK Rowling.
Bids came in from all over the world by phone and over the internet before an unknown person and made the big money bid.
Paintings up for auction
A second auction is also set to raise thousands of pounds, but this time it is paintings from the covers of the books that is for sale.
Two of the original paintings for the Chamber of Secrets are up for sale, by artist Cliff Wright, and are expected to raise more than £30,000.
They may even go for much more. The painting for the Philosopher's Stone raised £85,000 at auction.on.