The first time I’d come up, nine months earlier, the estate agent showed me how the previous tenants had made a small terrace garden, dotting around a few lead planters and a small bench. “It’s not officially yours, obviously,” he’d said. “But yours is the only flat with direct access to it. I think it’s pretty nice. You could even have a party up here!” I had gazed at him, wondering if I really looked like the kind of person who held parties. The plants have long since withered and died. I am apparently not very good at looking after things. Now I stand on the roof, staring out at London’s winking darkness below. Around me a million people are living, breathing, eating, arguing. A million lives completely divorced from mine. It is a strange sort of peace. The sodium lights glitter as th

