The boys at first were awestruck at the scene, but their attention was soon called to the difficulties of the pass. The bed of the stream was covered with rocks of all sizes; sometimes great boulders, as big as a good-sized cottage, almost entirely blocked the way, and would have done so altogether had not the small boulders round them formed slopes on either side. The depths of the ravine echoed and re-echoed, with a noise like thunder, the shout of the driver and the crack of the whip, as the oxen struggled on. The waggons bumped and lurched along over the stones; the natives and whites all worked their hardest, clearing away the blocks as far as possible from the track required for the waggons. Armed with long wooden levers four or six together prized away the heavy boulders, or, when these were too massive to be moved by their strength, and when no other path could be chosen, piled a number of smaller blocks, so as to make a sort of ascent up which the wheels could travel. The waggons moved but one at a time, the united efforts of the whole party being required to enable them to get along. When the leading waggon had moved forward a hundred yards, the next in succession would be brought up, and so on until the six waggons were again in line; then all hands would set to work ahead, and prepare the path for another hundred yards. In two places, however, no efforts sufficed to clear the way; the blocks rose in such jagged masses that it was absolutely impossible for the oxen to pull across them,--indeed it was with the greatest difficulty that when unyoked they were one by one got over; then tackles were fastened from the top of the rock to the waggons below--ropes and blocks being generally carried by travellers for such emergencies,--the oxen fastened to the ends of the ropes, and with the purchase so obtained the waggons were dragged bodily one by one over the obstacles. It was not until late in the afternoon that the party passed safely through the defile and reached the valley beyond, men and animals worn out by the exertions they had undergone. The day had not passed without excitement, for when they were engaged at the most difficult point of the journey the crack of rifles was heard far overhead, and for half an hour a steady fire was kept up there. Those below were of course wholly ignorant of what was passing there, and for some time they suffered considerable anxiety; for if their guard above had been overpowered they must have been destroyed by rocks cast down by their foes.