On the way I got a piece of solid comfort from the sight of a greyhound that was swinging along at a nursemaid's heels. He reminded me of a dog I used to have in Rhodesia, and of the time when I took him hunting with me in the Pali hills. We were after rhebok, the dun kind, and I recollected how we had followed one beast, and both he and I had clean lost it. A greyhound works by sight, and my eyes are good enough, but that buck simply leaked out of the landscape. Afterwards I found out how it managed it.Against the grey rock of the kopjes it showed no more than a crow against a thundercloud. It didn't need to run away; all it had to do was to stand still and melt into the background.