LONDON — Ever wondered what went through author J.K. Rowling's mind when she wrote the first “Harry Potter” novel? Fans of books about the boy wizard will have a chance to bid on a unique first edition of “Harry Potter and the Philosopher's Stone,” annotated by the author, at a charity auction this month, the English PEN organization said on Friday. The book contains Rowling's handwritten thoughts and commentary about the book and the film adaptation, as well as 22 hand-drawn illustrations including one of a sleeping baby Harry and another of Hogwarts headmaster Albus Dumbledore. — Reuters