The air in these ravines was close and hot, and sulphurous streams emitted an unpleasant odour as they rode along. Inglesant felt oppressed and ill. The valley of the Shadow of Death, out of which he had come into the cool pastures and olive-yards, had left upon the mind an exaltation of feeling rather than terror; and in the history of the friar, through the course of which traces of a devised plan penetrated the confusion of a disordered brain, the gracious prediction of Molinos seemed to promise fulfilment. The supreme effort of Divine mercy surely is that which shapes the faltering and unconscious actions of man into a beneficent and everlasting work. But the very clearness and calm of this transcendental air produced a wavering of the spiritual sense; and the companionship of a blind enthusiast, who, from the lowest depth of reckless sin, had suddenly attained a height of religious fervour, did not tend to reduce the fever of his thoughts. The scenes and forms of death with which he had been familiar in Naples returned again and again before his eyes, and his old disease again tormented him; so that once more he saw strange figures and shapes walking by the wayside. These images of a disordered fancy jostled and confused his spiritual perceptions. He felt wearied by those thoughts and desires which had formerly been dear to him, and the ceaseless reiteration of the friar’s enthusiastic conceptions jarred and irritated him more than he liked to confess. The brain of the blind man, unoccupied by the sights of this world, was full of visions of a mystic existence, blended and confused with such incidents and stories of earth as he had heard along the way. With such phantasmal imaginations, he filled Inglesant’s ears. Proceeding in this manner, they came to a place where the ravine, opening out a little, exposed a distant view of the Campagna, with its aqueducts and ruined tombs. At the opening of the valley stood one of those isolated rocks so strange to English eyes, yet so frequently seen in the paintings of the old masters, crowned with the ruins of a Temple, and fringed with trees of delicate foliage, poplars and pines. At the foot of the rock an arch of ruined brickwork, covered with waving grass and creepers, spanned the road with a wide sweep, and on the opposite side a black sulphurous pool exhaled a constant vapour. Masses of strange, nameless masonry, of an antiquity dateless and undefined, bedded themselves in the rocks, or overhung the clefts of the hills; and out of a great tomb by the wayside, near the arch, a forest of laurel forced its way, amid delicate and graceful frieze-work, moss-covered and stained with age.