Did I enjoy this novel? Yes! Nevertheless, it dismayed me. How could John Banville, whom I’ve admired so much ever since he published his first short stories, whose great novel The Sea deservedly won the Booker and whose thrillers, written under the pseudonym Benjamin Black, so hauntingly evoke 1950s Dublin, have wasted however long it took to write it?

The answer, perhaps, was given some years ago, in an interview with a journalist, when he confessed: ‘The guiding light has always been Henry James.’