J.K. Rowling has completed her first post-Harry Potter book, a collection of wizarding fairytales titled The Tales of Beedle the Bard. Only one copy will be sold, and it will be auctioned at Sotheby’s on Dec. 13. The starting bid is $62,000. All proceeds will go to The Children's Voice charity.

For those of us who want to know more about The Tales of Beedle the Bard, there is a 48-page Tales of Beedle the Bard Commemorative Catalogue offered by Sotheby’s for $16.

Here’s the description: A special commemorative catalogue for this unique item is being produced and will be available to purchase from Sotheby’s. The 48-page commemorative catalogue contains a message from the author about the creative inception of The Tales of Beedle the Bard plus images from the manuscript itself. Also included is information about The Children’s Voice charity, images showing the making of the manuscript and auction information for prospective buyers. Profits from the sale of the catalogue will be donated to The Children’s Voice.

Learn more about the commemorative catalogue here.