Then as they walked side by side--they two, alone together in the darkness, alone in the sweet, soft beauty of the Southern night; alone, as it were, outside the very world; in a world apart where none might intrude; the rich shroud of darkness around them--Eustace began to wonder if he were really made of flesh and blood after all. The pent-up force of his self-contained and concentrated nature was in sore danger of breaking its barriers, of pouring forth the fires and molten lava raging within--and to do so would be ruin--utter, endless, irretrievable ruin to any hopes which he might have ventured to form. He could see every feature of that sweet, patrician face in the starlight. The even, musical tones of that exquisitely modulated voice, within a yard of his ears, fairly maddened him. The rich, balmy zephyrs of the African night breathed around; the chirrup of the cricket, and now and again the deep-throated booming croak of a bull-frog from an adjacent _vlei_ emphasising its stillness. Again those wild, raging fires surged up to the surface. "Eanswyth, I love you--love you-- worship you--adore you! Apart from you, life is worse than a blank! Who, what, is the dull, sodden, senseless lout who now stands between us? Forget him, darling, and be all heaven and earth to me!" The words blazed through his brain in letters of flame. He could hardly feel sure he had not actually uttered them. "What is the matter, Eustace? I have asked you a question three times, and you haven't answered me." "I really beg your pardon. I--I--suppose I was thinking of something else. Do you mind asking it again?" The strange harshness of his voice struck her. It was well for him-- well for both of them--that the friendly darkness stood him in such good stead. "I asked you, how far do you think Tom would have to ride before finding the sheep?" "Tom" again! He fairly set his teeth. "Well into the Gaika location," was the savage reply that rose to his lips. But he checked it unuttered. "Oh, not very far," he answered. "You see, sheep are slow-moving brutes and difficult to drive, especially in the dark. He'll turn up soon, never fear." "What is that? Look! Listen!" she exclaimed suddenly, laying a hand upon his arm. The loom of the mountains was blackly visible in the starlight. Away in the distance, apparently in the very heart of them, there suddenly shown forth a lurid glow. The V-shaped scarp of the slopes stood dully in relief against the glare, which was as that of a furnace. At the same time there floated forth upon the night a strange, weird chorus--a wild, long-drawn eerie melody, half chant, half howl, faint and distant, but yet distinct, though many miles away. "What can they be up to at the location, Eustace? Can it be that they have risen already?" ejaculated Eanswyth, turning pale in the starlight.