Creeping over the loose rubble in the bottom of the fissure to its outer edge, von Harben discovered a sheer drop of a hundred feet to the level of the next terrace and his heart sank. To return the way they had come was, he feared, a feat beyond their strength and ingenuity, for there had been places down which one had lowered the other only with the greatest difficulty, which would be practically unscalable on the return journey. It being impossible to ascend and as starvation surely faced them where they were, there was but one alternative. Von Harben lay upon his belly, his eyes at the outer edge of the fissure, and, instructing Gabula to hold tightly to his ankles, he wormed himself forward until he could scan the entire face of the cliff below him to the level of the next terrace. A few feet from the level on which he lay he saw that the fissure lay open again to the base of the cliff, its stoppage at the point where they were having been caused by a large fragment of rock that had wedged securely between the sides of the fissure, entirely choking it at this point. The fissure, which had narrowed considerably since they had entered it at the summit, was not more than two or three feet wide directly beneath the rock on which he lay and extended with little variation at this width the remaining hundred feet to the comparatively level ground below. If he and Gabula could but get into this crevice he knew that they could easily brace themselves against its sides in such a way as to descend safely the remaining distance, but how with the means at hand were they to climb over the edge of the rock that blocked the fissure and crawl back into the fissure again several feet farther down? Von Harben lowered his crude alpenstock over the edge of the rock fragment. When he extended his arms at full length the tip of the rod fell considerably below the bottom of the rock on which he lay. A man hanging at the end of the alpenstock might conceivably swing into the fissure, but it would necessitate a feat of acrobatics far beyond the powers of either himself or Gabula. A rope would have solved their problem, but they had no rope. With a sigh, von Harben drew back when his examination of the fissure convinced him that he must find another way, but he was totally at a loss to imagine in what direction to look for a solution. Gabula crouched back in the fissure, terrified by the anticipation of what von Harben's attempted exploration had suggested. The very thought of even looking out over the edge of that rock beyond the face of the cliff left Gabula cold and half paralyzed, while the thought that he might have to follow von Harben bodily over the edge threw the negro into a fit of trembling; yet had von Harben gone over the edge Gabula would have followed him.