It may lack wizards and witches, but J.K. Rowling and her publisher are hoping her first novel for adults, "The Casual Vacancy," will have the magic touch. The book's title was announced Thursday, along with a brief plot synopsis and publication date. The publisher said the "blackly comic" tale of rivalry and duplicity in a small English town would be available worldwide on Sept. 27. The book will be Rowling's first post-Potter effort. Her seven-volume saga about the adventures of a boy wizard became one of the most successful fictional series in history.