It is not great literature. The first three books make for pleasant and occasionally gripping beach reading. From the fourth installment the series begins to sprawl. It also makes unconvincing forays into teenage psychology. Yet even at their clumsiest the books are well-plotted and full of invention. They also avoid the temptation to sneak ideology into children’s heads by wrapping it in fantasy. C.S. Lewis’s children’s books, to which Ms Rowling’s are often compared, are spoiled by creeping piety. Philip Pullman’s suffer from strident anticlericalism. Although the Harry Potter series endorses traits such as bravery and loyalty, it is intended above all to entertain. It has, hundreds of millions of times.
