I personally owe a lot to this wonderful novel. It inspired my own Spirit of the Place, of which a reviewer said, ‘It reads like a starter pack for Possession.’ Was this a put-down or praise? I chose praise, because, though not intentionally, that’s what, in effect, it is. I remember back in 1990, when the opinions of the Booker panel were televised before the winner was announced, someone from the Cambridge English Faculty dismissed Possession because, he opined, any of his colleague...