There is no twilight in those latitudes (within two degrees of the equator), so that very soon after our start we were tramping along in the black darkness. I had no knowledge of the road; only a rough idea of the general direction. I steered by the aid of a pocket-compass and a box of matches. After the first hour I noticed that the men commenced to stagger and lag behind with their lately unaccustomed burdens, and I had to be continually on the alert to prevent desertions. I numbered them at intervals, to make sure that none of them had given me the slip, but an hour and a half after starting I missed three men with their loads, in spite of all my precautions. I shouted back into the darkness, and the men accompanying me did the same, and, after a slight interval we were relieved to hear an answering shout from the missing men. After waiting a few moments, we shouted again, and were amazed to find that the answering shout was much fainter than before. We continued shouting, but the answers grew gradually fainter and more faint till they died away altogether. I could not understand it at first, but the solution gradually dawned upon me. We were on a large plain, and a few hundred yards to the left of us was a huge belt of forest, which echoed our shouts to such an extent that the men who were looking for us were deceived as to our real position, and in their search were following a path at right angles to our own. I could not light a fire to guide them, as the grass was very long and dry, and I should probably have started a bush fire, the consequences of which would have been terrible. I therefore fired a gun, and was answered by another shot, seemingly far away over the plain to the right. Telling the men to sit down and rest themselves on the path, I ordered Jumbi to follow me, and, after carefully taking my bearings by compass, started to walk quickly across the plain to intercept them.