Harry Potter fanatics can simmer down now! Bloomsbury Publishing announced today that Harry Potter and the Order of the Phoenix, the long-awaited fifth book in the boy wizard series, is due in stores on June 21. "Harry Potter and the Order of the Phoenix is absolutely superb and will delight all J.K. Rowling's fans," raved Bloomsbury chief Nigel Newton. "She has written a brilliant and utterly compelling new adventure." The book includes 38 chapters and 255,000 words a third longer than the last book, Harry Potter and the Goblet of Fire.