The Leaky Cauldron, a Harry Potter fan blog, is raising money to bid on J.K. Rowling's 93-word clue to what's going to be in the next Harry Potter book. If successful, the clue will be posted on the site for all to see -- their worst fear is that some rich collector will score the note and keep it secret.

Sotheby's has estimated that the note may go for as much as $9,400 in the auction next week. It's all for a good cause, though. The proceeds are being donated to Book Aid International, a charity that distributes books in third-world countries. And Leaky, Inc.(as the newly-incorporated Blog is now known) will donate the proceeds of its drive to charity whether or not it is successful in getting the note.