Unless a camel is fresh, unusually large and strong, or constantly urged, it rarely makes more than two miles an hour. It was not over ten hours since the robber sheik had left the oasis, and some of the camels were very old and exhausted. It was a foolish hope, no doubt, and yet Kanana hoped that anything so large as a great caravan might still be distinguishable. Up, up, up he climbed--as fast as hands and feet could carry him. He no longer felt the cool air of early morning. He no longer looked about him to see the new sights of a strange oasis. He did not even pause to look away over the desert as he climbed. The highest point was none too high. He did not care how far he could see until he had gained the white tomb of Aaron, upon the very crest. Had he not been too thoroughly occupied with what was above him to notice what transpired about him and down below, he would have seen five Arab horsemen reach the stream by which he slept, almost as he began to climb. They were Mohammedan soldiers, thoroughly armed for war, and had evidently come from the northern borders of Arabia, where the victorious Mussulmans were triumphantly planting the banner of Islam. They had been riding hard, and both men and horses were exhausted. They hurried to the water. The men hastily ate some food which they carried, and tethered their horses in Arab fashion, by a chain, one end of which is fastened about the forefoot of the animal and the other end about the master, to prevent their being stolen while the master sleeps. The moment this was accomplished, the five men rolled themselves in their mantles, covering their faces, as well as their bodies, and lay down upon the grass to sleep. They were skilled in the art of making long journeys in the shortest possible time, and were evidently upon important business; for an Arab is never in haste unless his mission is very important. Before Kanana reached the temple the men were soundly sleeping, and the horses, lying down to rest themselves, were still eating the grass about them, as a camel eats. Panting for breath, and trembling in his eager haste, Kanana reached the tomb of Aaron: an open porch, with white pillars supporting a roof of white, like a crown of eternal snow upon the summit of Mount Hor. Between the snowy pillars Kanana paused. One quick glance at the sky gave him the points of the compass, and shading his eyes from the glowing east, he looked anxiously to the south and west. Sand, sand, sand, in billows like great waves of an ocean, lay about him in every direction. Far away there were low hills, and a semblance of green which, to his practiced eye, meant a grove of date palms upon the banks of a stream. But nowhere, search as he would, was there the faintest speck to indicate the caravan.