Hyphen Update: Half-Blood Prince Across the Board (and Pond)News
As a followup to our notice that, in contrast to the way the title's been used on JKRowling.com, there will be a hyphen in the American edition of HBP, we've just confirmed it will also be in place in the British edition. The book will be Harry Potter and the Half-Blood Prince whether you be Yank or Brit. This decision was made to be consistent with the use of the term in rest of the series.
(Yes, we know, you can all sleep better tonight now that this troubling matter is solved. Glad to be of service. :)