“Oh, come on, Doc!” cried Larry. “As long as we’re here let’s see the sights. Allons mon vieux! ” he called gaily to the green dwarf. The latter, understanding the spirit, if not the words, looked at O’Keefe with a twinkle of approval; turned then to the great Norseman and scanned him with admiration; reached out and squeezed one of the immense biceps.

“Lugur will welcome you, at least,” he murmured as though to himself. He stood aside and waved a hand courteously, inviting us to pass. We crossed. At the base of the span one of the elfin shells was waiting.

Beyond, scores had gathered, their occupants evidently discussing us in much excitement. The green dwarf waved us to the piles of cushions and then threw himself beside us. The vehicle started off smoothly, the now silent throng making way, and swept down the green roadway at a terrific pace and wholly without vibration, toward the seven-terraced tower.