I landed in Karachi and was picked up at the airport by my host for the three days. His friend had leant him a car and we drove to his house which was not far from the airport and down the most confusing set of alleyways I have ever seen, there was no way I could ever have retraced the steps had I got lost. Anyway, there in the house I laid down my backpack, heavy after a few months of travel and book-buying. It was already late, and the sun had set outside. John asked me if I was tired, I told him not yet, and so he took me by the arm and said:"We are going to a birthday party tonight, the host will not mind if I bring you".