I had a very interesting call this morning from Ian Barnes at Temple Bookbinders in Headington.
According to Mr Barnes, he was at Sotheby's earlier this week to bid for JK Rowling's The Tales of Beedle the Bard, a 160-page Harry Potter spin-off of five wizarding fairytales that relates to his final adventure.
The £1.95m paid by an anonymous collector is going to a very good cause, the Children's Voice charity, which cares for abandoned orphans in Eastern Europe.
Mr Barnes phoned from his Quarry Road base to say that Temple had been the under-bidders for the book, on behalf of a collector in the South East, who was trying to start a library.
When the bidding reached £1.9m, Mr Barnes revealed, his buyer pulled out because he realised £1.9m could buy a lot of other books.
Mr Barnes, 45, was amazed that the book has "broken records" and fetched the same price as a first Folio Shakespeare.
He is clearly something of an expert on rare books and quite a collector himself and I'd love to take a peek at his bookshelves some time.
Mr Barnes was delighted to meet JK Rowling at Sotheby's in London, where she signed a special auction catalogue for him and his family.
These cost between £6 and £8 but a signed copy will definitely sell for more than that on eBay.
At the moment, JK Rowling has no plans to publish The Tales but now she has achieved her aim by raising £2m for charity, my guess is she will be tempted to publish the book for her fans.
Now they have no more Potter novels to look forward to, this companion piece would be a real treat for them.
If money were no object I would probably spend thousands on the elusive "brown-faced" Rupert Bear annual of 1973.
But until I hit the jackpot I shall continue to enjoy snapping up Penguin paperbacks for £1 a throw at Arcadia in St Michael Street.
What's the most expensive book you have bought recently, and do you think Rowling should publish The Tales of Beedle the Bard?