But ere the words had fallen from his lips the star-like light again shone forth white, with intense brilliancy, but in a different position. It seemed to have moved along the brink of the precipice, nearer to us, and its whiteness had been somehow intensified. In appearance it was very similar to an electric search-light, and so powerful were its rays that they streamed forth in a long line of brilliancy that slowly swept the valley where the corpses of the Arabs lay piled until it reached us, illuminating our camp with a light almost bright as day. Several minutes elapsed, and Omar, standing in the centre of the light, casting a long grotesque shadow behind, continued waving the word he was so desirous of signalling. In the meantime those who were working the light had undoubtedly ascertained the extent of our numbers, for very soon the light slowly travelled over the adjoining rocks, and even searched the further end of the valley; then suddenly it shed upon us again, and instantly became obscured. Nothing daunted, Omar continued his signals until at last they were evidently noticed and read, for suddenly the light streamed forth again and commenced a series of vivid flashes that lit up the valley like shafts of lightning. Thus came the answer, for next second Omar, overjoyed, and unable to contain himself, again cried aloud: "Seen! Hurrah! At last!" The signals exchanged between those on the lofty summit of the insurmountable barrier, and my friend Omar were long, and, to me tedious. I could make nothing of them, although it was apparent that my old chum was carrying on an interesting conversation with some person unseen. Once again the light swept across the silent battle-field, showing, as if with justifiable pride, the wholesale slaughter that had been there committed by the defenders, and again fell full upon the son of the dreaded Naya. Then it flashed quickly many times and suddenly disappeared. Omar seemed at last satisfied, for, holding the brand before him, he took from the tiny bag around his neck a pinch of the magic powder that was included in his jujus, and pronouncing words that conveyed some mystical meaning, slowly let the powder fall into the flickering flame, causing it to hiss and splutter. He was sacrificing to the fetish for our deliverance from the perils of the Way of the Thousand Steps. Even as he stood performing this pagan rite, there sounded afar off a dull, low boom like the distant report of heavy cannon. It echoed weirdly along the valley where all was quiet and at rest, and was three times repeated, like some ominous voice of warning. Omar heard it. Surely the noise was an unexpected one, for it instantly filled him with apprehension, and he listened attentively, little dreaming that I also was his companion upon this strange midnight vigil. CHAPTER XVII. A SALUTE OF BULLETS.