Some people can write with ease in whatever circumstances they find themselves. Up a tree, on a bus, in a log cabin, a steamy-windowed café or a tropical beach. Some don’t mind noise, distraction or a broken up day. I, unhappily, am not made of this material. I need peace, absolute peace, an empty diary and zero distraction. I enter a kind of writing purdah, an eremitical seclusion in which there is just me, a keyboard and abundant cups of coffee, all in a room whose curtains have been drawn against the light. [...] This is how it must be.