So delicately formed that fairies might have made it with a guttered candle, it spanned the river in one splendid sweep, twenty feet above water, like a suspension bridge. Then, so light and graceful that it scarcely seemed to touch anything at all, it swept on in irregular arches downward to the arena and ceased abruptly as if shorn off by a giant ax, at a point less than half-way to it. Its end formed a nearly square platform, about fourteen feet above the floor, and the broad track thence to the arena, as well as all the arena's boundary, had been marked off by great earthenware lamps, whose greasy smoke streaked up and was lost by the wind among the stalactites. “Greek lamps, every one of 'em!” King whispered to himself, but he wasted no time just then on trying to explain how Greek lamps had ever got there. There was too much else to watch and wonder at. No steps led down from the bridge end to the floor; toward the arena it was blind. But from the bridge's farther end across the hurrying water stairs had been hewn out of the rock wall and led up to a hole of twice a man's height, more than fifty feet above water level. On either side of the bridge end a passage had been left clear to the river edge, and nobody seemed to care to invade it, although it was not marked off in any way. Each passage was about fifty feet wide and quite straight. But the space between the bridge end and the arena, and the arena itself, had to be kept free from trespassers by fifty swaggering ruffians armed to the teeth. Every man of the thousands there had a knife in evidence, but the arena guards had magazine rifles well as Khyber tulwars. Nobody else wore firearms openly. Some of the arena guards bore huge round shields of prehistoric pattern of a size and sort he had never seen before, even in museums. But there was very little that he was seeing that night of a kind that he had seen before anywhere! The guards lolled insolently, conscious of brute strength and special favor. When any man trespassed with so much as a toe beyond the ring of lamps, a guard would slap his rifle-butt until the swivels rattled and the offender would scurry into bounds amid the jeers of any who had seen. Shoving, kicking and elbowing with set purpose, Ismail forced a way through the already seated crowd, and drew King down into the cramped space beside him, close enough to the arena to be able to catch the guards' low laughter. But he was restless. He wished to get nearer yet, only there seemed no room anywhere in front. The music-box was hidden. King could see it nowhere. Five minutes after he and Ismail were seated it stopped playing. The hum of the crowd died too.