How's this for publicity, oops, I mean, irony? Christopher Paolini, forecast by some as J.K. Rowling's heir apparent, grades Harry Potter & the Half-Blood Prince for Entertainment Weekly. He gives it an A-. (It's hard to tell where the minus comes from, certainly not from statements like, "Her epic stands as one of the great achievements in fantasy literature.") Paolini is no Michiko Kakutani, but both critics praise Rowling's latest. Paolini's Eldest, a sequel to the bestselling Eragon, debuts next month.