Author J.K. Rowling says she might write more Harry Potter books. In one proposed shocking scene in “The Return of the Muggles”, Lord Voldemort turns to the magic lad and intones “Harry, I am your father.” And as  Potter and his friends move into their college years, In “Hogwarts Toga Party” a drunken Harry turns the residents of Slytherin house into frogs but can’t remember the next day where he put them.