LONDON, June 30 (UPI) -- The British publisher of the Harry Potter books is gearing up for its largest-ever advertising campaign for "Harry Potter and the Half-Blood Prince."
For the book's launch on July 16, Bloomsbury Publishing has rented Edinburgh Castle, the Financial Times reported. Just after midnight, author J.K. Rowling will read excerpts from the book to children.
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Harry Potter's wizardry has transformed Bloomsbury into a major player in book publishing. The books in the series -- "Half-Blood Prince" is No. 6 -- have been the fastest-selling in history.
Bloomsbury said publicity about the latest book has stimulated sales of the Potter backlist, the Financial Times reported.
