There was little in the way of outward incident to relieve the monotony of the journey. Now and then a short, thick rattlesnake, with horns on its ugly head, wriggled out of his path. Now and then his horse’s hoof almost trod upon a hideous, flat lizard, also horned. Here and there the uncouth projections of a cactus pushed upwards out of the dust; some of these the mustang nibbled at, for the sake of their juice. Freeman wondered where the juice came from. The floor of the desert seemed for the most part level, though there was a gradual dip towards the east and northeast, and occasionally mounds and ridges of wind-swept dust, sometimes upwards of fifty feet in height, broke the uniformity. The soil was largely composed of powdered feldspar; but there were also tracts of gravel shingle, of yellow loam, and of alkaline dust. In some places there appeared a salt efflorescence, sprouting up in a sort of ghastly vegetation, as if death itself had acquired a sinister life. Elsewhere, the ground quaked and yielded underfoot, and it became necessary to make detours to avoid these arid bogs. Once or twice, too, Freeman turned aside lest he should trample upon some dry bones that protruded in his path,--bones that were their own monument, and told their own story of struggle, agony, exhaustion, and despair. None of these things had any depressing effect on Freeman’s spirit. His heart was singing with joy. To a mind logically disposed, there was nothing but trouble in sight, whether he succeeded or failed in his present mission. In the former case, he would find himself in a hostile position as regarded the man he most desired to conciliate; in the latter, he would remain the mere rolling stone that he was before, and love itself would forbid him to ask the woman he loved to share his uncertain existence. But Freeman was not logical: he was happy, and he could not help it. He had kissed Miriam, and she loved him. His course lay a few degrees north of east. Far across the plain, dancing and turning somersaults in the fantastic atmosphere, were the summits of a range of abrupt hills, the borders of a valley or ravine which he wished to explore. Gradually, as he rode, his shadow lengthened before him. It was his only companion; and yet he felt no sense of loneliness. Miriam was in his heart, and kept it fresh and bold. Even hunger and thirst he scarcely felt. Who can estimate the therapeutic and hygienic effects of love? The mustang could not share his rider’s source of content, but he may have been conscious, through animal instincts whereof we know nothing, of an uplifting and encouraging spirit. At all events, he kept up his steady lope without faltering or apparent effort, and seemed to require nothing more than the occasional wetting which Freeman administered to his nose. There would probably be some vegetation, and perhaps water, on the hills; and that prospect may likewise have helped him along.