The man from the Nuclear Installations Inspectorate was very insistent. On the bucking deck of the tender in Plymouth Sound he engaged me in conversation so closely as to quite obscure my view. She came out of nowhere as the tender swung alongside: a barnacled black whale 300 feet long, her casing almost awash, pitching and rolling gently in the south-westerly driving up from Penlee Point. Only the jutting conning-tower, delicately streaked with rust, distinguished her from a lurking sea monster, a leviathan. She was the 5,200-tonne nuclear submarine Talent. I was there that day at the behest of the Flag Officer Submarines to be shown her paces. All because, thirty-one years earlier in a second-hand bookshop in Croydon, I had picked up a copy of Edward Young’s One of Our Submarines.