It is, perhaps, hard to imagine a collaboration between Virgil and Captain W.E. Johns, a fusion of the Aeneid and Biggles Pulls It Off, but that is how Boris Johnson’s memoir reads. Our intrepid hero travels round the world, wooing Gulf potentates, sticking it to Vladimir Putin, snatching submarine contracts from under Emmanuel Macron’s snooty Gallic nose and then makes it home in time for some uniting and levelling up before settling down to a well-deserved glass of Tignanello.