another breath-taking maneuver.

A mountain peak came sliding toward them ominously. They scraped by. The ship dived, throwing Tolto forward, and his instinctive grab threw the elevator up. The levitators screamed madly as they lost their purchase on the air, due to the ship's unstable keel.

"We're goners!" someone shouted. "Kill that fool!"

They bounced off a cliff, turned over and over like a tumbleweed. A cylindrical building, unexpected in this wilderness, loomed up. They seemed about to hit it, but floated past. The rock floor of the valley rushed up. With a crash the ship rolled over, split wide open.