Five years ago, I visited Pablo Neruda’s former home in Valparaíso, now a museum. La Sebastiana is perched on a hillside with marvellous views out over the Pacific. When I reached the poet’s study at the top of the house, the audio tour commentary mentioned the ‘thrillers’ that he’d enjoyed, some of which were gathering dust on the lowest shelf of a bookcase. My lifelong fascination with detective stories made it inevitable that I would get down on hands and knees and explore the books to see if Neruda and I shared any tastes. There were a couple of dozen paperbacks, including – to my delight – dog-eared green Penguins written by a favourite author of mine, Anthony Berkeley.