The sun had sunk behind the western wall, leaving the pit in shadow; but its dying glare flooded with startling red the wings each side of the entry, and the fiery bulk of the further wall across the great valley. The pit-floor was of damp sand, darkly wooded with shrubs; while about the feet of all the cliffs lay boulders greater than houses, sometimes, indeed, like fortresses which had crashed down from the heights above. In front of us a path, pale with use, zigzagged up the cliff-plinth to the point from which the main face rose, and there it turned precariously southward along a shallow ledge outlined by occasional leafy trees. From between these trees, in hidden crannies of the rock, issued strange cries; the echoes, turned into music, of the voices of the Arabs watering camels at the springs which there flowed out three hundred feet above ground.