Can you recall the novel that took you away from the nursery bookshelves and into the realms of Grown-Up Books – a gateway book, if you like? I happened upon mine after months of resisting efforts both at home and at school to get me to read something more challenging. Until then, as a pony-mad child without a pony, I’d sought refuge in my tattered copies of thrilling stories like Show-Jumping Secret and We Hunted Hounds by the Pullein-Thompson sisters. Then one day, entirely of my own volition, when I was perhaps 12 or 13, I reached for the blue, cloth-bound copy of Siegfried Sassoon’s Memoirs of a Fox-Hunting Man.