The author who made “Harry Potter” a household name has now cast her wand on adults. J.K. Rowling’s highly anticipated new novel, “The Casual Vacancy”, hits shelves today. A million copies have already been sold. CNN’s Erin McLaughlin joins “Early Start” live from a bookstore in London this morning where the book has just gone … Continue reading Erin McLaughlin on J.K. Rowling's new novel for adults: customers driven by curiosity