The harsh bedroom light is snapped on. Rehana is ushering in a tall, thin woman with short, greying hair and a friendly if bemused smile; the same look I have had on my face all day. “Christine from Australia.†Rehana says by way of introduction. “Anne from Ireland. You sleep here.†She points to the bed in which I lie, and I obligingly move over to one side. Before Christine or I can say anything, my friend Shahardot, who is lugging two suitcases, launches a huge square canvas bag into the room. He points at me in recognition, laughs for old time’s sake, and demands money from Christine. With Rehana watching avidly, Christine changes into the long johns that contrast nicely with my oversized purple T-shirt. She opens her canvas bag and from its depths, and like a modern Mary Poppins, she shakes out a full-sized duvet and pillow. We lie...