The heat in this valley is so great after eleven o'clock in the day, that it is impossible to travel, and makes it necessary to seek what shade there may be till the sun has sunk low in the sky. The naked rocks glisten and tremble in the heat, the staring colours of the parched hill-sides, and the intense glare of the sun in this desert land, are in curious contrast to the shady valleys that lie thousands of feet up, hidden away in the recesses of the great mountain. But it is after the evening shadows have one by one lengthened, after the last glow of the hot orange sunset has at last faded out of the sky, and from out the darkness the rising moon lights up this deserted landscape with mysterious shadows and perplexing distances, that the whole scene becomes totally beyond description. The intricacy of form shown by the silent mountains seem to be some magnificent and great imagination from the mind of a Turner. The white moonlight, and the grotesque black shadows and leering pinnacles piercing the starlit sky, can only belong to a land dreamt of by a Gustave Doré as a fitting illustration to the Wandering Jew, and only be described by Shelley:-- 'At midnight The moon arose: and lo! the ethereal cliffs Of Caucasus, whose icy summits shone Among the stars like sunlight, and around Whose caverned base the whirlpools and the waves Bursting and eddying irresistibly Rage and resound for ever.' But without doubt the dominant sensation in this strange land is that of fear and abhorrence; and what makes it all the more appalling is that this thing before one is there in all its nakedness; it has no reserve, there is nothing hidden. Its rugged insolence, its brutal savagery, and its utter disregard of all the puny efforts of man, crushes out of the mind any idea that this spot belongs to an ordinary world. Whether in the day or the night it is the same. During the stifling hours of noon the valley sleeps in the scorching sunlight, but there, always there, is that monstrous flood below, slowly, ceaselessly moving. Occasionally the waters will send up an angry and deep-tongued murmur, when some huge eddy, rising to the surface, breaks, and belches out the waters that have come from the lowest depths. At night in the stillness and the heat, as one lies unable to sleep, imagination runs riot; from out the inky shadows that seam the hill-sides in the pale moonlight, dragons and great creeping monsters seemingly appear crawling slowly down to drink at the ebon flood beneath. And imagination easily in restless dreams becomes reality, thus adding tenfold to the already accumulated horrors. But at last in the darkness-- 'Before the phantom of false morning dies'-- suddenly a breath of cold air, as from heaven, descends like a splash of cool water. It has wandered down from the upper snows. Then a few moments later comes another; and, tired out, real sleep claims one at last.