For some distance their road lay through a pleasant and well-cultivated country, dotted at intervals by hamlets and scattered cottages, which were surrounded by groves of orange-trees or clumps of dates and palms. At length, as they advanced, the ground became broken and hilly, the road was steep, and far in the distance they saw, on a great plateau or table-land, the sparkling domes and minarets of a majestic city. The sun was already low as they drew near to the city, and they were congratulating themselves on being able to enter the town before the darkness should be upon them, when suddenly they came to the edge of a vast and precipitous abyss, which completely severed the country they had been traversing from the heights on which the city had been built. The road they could see continued its course on the other side, but, spanning the dizzy chasm, the only bridge was the trunk of a gigantic tree, which lay stretched across it. Without hesitation or difficulty the natives of the country passed over, trusting themselves without apparent concern to walk at that tremendous height along the rough surface of the primitive bridge, which afforded so uncertain and precarious a foothold. The captain, having the nerves and nimbleness of a sailor, followed them fearlessly and safely. But for the Caliph the adventure was extremely perilous. However, seeing the others cross, with his wonted intrepidity and hardihood he ventured to follow them. But on reaching the middle of the narrow and uneven footway, and looking down into the tremendous depths below, becoming giddy he threatened to fall headlong, and only by a strong effort of the resolute will that distinguished him, and steadying himself by looking earnestly at a fixed spot in front of him, he succeeded in reaching the other side in safety. Shortly after passing over this dangerous bridge they began to find themselves in the suburbs of the city. On either side the road there were fine houses situated in beautiful gardens, and they had not proceeded far before a guard met them, sent by Selim Sadek, the king. Selim was very desirous to see and speak with the two brave men who unaided had crossed the tree-bridge in safety--a feat no stranger previously had succeeded in accomplishing. When they reached the palace--which was a noble and imposing pile of buildings, situated on a steep hill, and overlooking not only the city, but extensive plains and lakes stretching away as far as the eye could see--they were shown into apartments where baths and food were prepared for them. After bathing and enjoying an excellent repast, they retired to rest, being greatly fatigued with their journey.