A  couple of interesting new books on the notorious spy Kim Philby have recently appeared. You stand at the bus stop waiting for ages for a number 11, then along come two at once. What do A.A. Milne, Kim Philby, Tony Benn, Andrew Lloyd Webber, Helena Bonham Carter and Nick Clegg have in common? All are former pupils of Westminster School, founded in 1560 and still today proudly part of Westminster Abbey. It is a school that, as one headmaster put it, never succumbed to the “Arnold tradition”. One of these two books is by Tim Milne, a school friend of Philby’s at Westminster and, like him, for decades a spy, though thankfully on our side rather than Moscow’s. As Milne (A.A. Milne’s nephew and so, I suppose, Christopher Robin’s first cousin) points o