Sometimes, you feel yourself weightless, thinned. You draw back the curtains (if there are any) on a rectangle of wasteland at dawn, and realise that you are cast adrift from everything that gave you identity. Thousands of miles from anyone who knows you, you have the illusion that your past is lighter, scarcely yours at all. Even your ties of love have been attenuated (the emergency satellite phone is in my rucksack and nobody calls). Dangerously, you may come to feel invulnerable.

I had a heady dream of loving her, as if she were an actress on a stage of my own making; and as the night wore on, my imaginings wandered into make-believe, and died beyond the tent of the mosquito net, where Vincent was snoring, and the African stars were shining in through our lone window, and nothing was quite real.