He had no theory—no suggestion. Yet the matter seemed an ominous one.
It was unheard of that an encounter with a hundred volors should take
place, and he wondered why they were going southwards. Again the name of
Felsenburgh came to his mind. What if that sinister man were still
somewhere overhead?
"Eminence," began the old man again. But at that instant the car began to move.
A bell clanged, a vibration tingled underfoot, and then, soft as a flake of snow, the great ship began to rise, its movement perceptible only by the sudden drop and vanishing of the spire of rock at which Percy still stared. Slowly the snowfield too began to flit downwards, a black cleft, whisked smoothly into sight from above, and disappeared again below, and a moment later once more the car seemed poised in white space as it climbed the slope of air down which it had dropped just now. Again the wind-chord rent the atmosphere; and this time the answer was as faint and distant as a cry from another world. The speed quickened, and the steady throb of the screw began to replace the swaying motion of the wings. Again came the hoot, wild and echoing through the barren wilderness of rock walls beneath, and again with a sudden impulse the car soared. It was going in great circles now, cautious as a cat, climbing, climbing, punctuating the ascent with cry after cry, searching the blind air for dangers. Once again a vast white slope came into sight, illuminated by the glare from the windows, sinking ever more and more swiftly, receding and approaching—until for one instant a jagged line of rocks grinned like teeth through the mist, dropped away and vanished, and with a clash of bells, and a last
