Fans and collectors went mad for the card on which Potter author JK Rowling had written a short teaser about what will happen in the next Potter adventure, The Order of the Phoenix.
JK Rowling
So far we only know that it contains words like "Ron... Broom... Sacked...Dies".
Among the bidders was the Potter fan website The Leaky Cauldron.
The website has spent the last week and a half appealing for its readers to donate money so that it could buy the unique message, and then tell its readers what it says.