The well-timed deluge of rain which fell during the night had been so eagerly drunk by the thirsty desert, that when the morning dawned the only traces of the storm were presented in numberless channels left by the torrent, with here and there a muddy pool, around which the guinea-fowl were still rallying in clamorous troops. Every portion of the road having been saturated, and rendered far too heavy for the jaded camels, advance was of necessity delayed until noon, by which time they had become sufficiently dry to admit of the resumption of the journey. A bare alluvial plain, skirting the base of the Koomi range, led to a few acacia trees of larger growth than had heretofore been seen. They occupied a hollow styled Ras Mittur, which is the point of union of the two roads from Killulloo, and hence the caravan struck off across a grassy plain, abounding in herds of graceful _mhorr_. The course followed the eastern border of the field of truncated cones; and in the fresh green hue of the bushes with which the cindery tract is studded, was afforded abundant proof of the fertility of its decomposed lava. Passing a cluster of Bedouin huts, whose inmates were watching their grazing herds of milch camels, the road next threaded a narrow belt of verdant jungle. This suddenly opened into the wide plain of Moolu, studded in every direction with flocks of sheep and goats, assembled from all parts of the country round; and in a deep hollow in the very centre lay the attraction--the oasis of Yoor Erain Maroo, a noble sheet of water surrounded by a belt of hillocks, and measuring during even this season of drought, a full mile in diameter. It was indeed a sight most refreshing to the eye. Troops of waterfowl of various plumage sailed over its glassy surface. Birds chattered amongst the autumnal branches of the numerous trees, whose tall stems, half immersed, rose thickly in the centre, and the cool waters of the basin afforded to the weary and travel-stained pilgrims the first unlimited supply of pure liquid that had been revelled in since bidding adieu to the shores of India.