under the door into a corridor--and shrank against a cliff wall as with a rush of wind and pounding tread the blurred shapes of a man's huge feet and legs rushed past. The upper air was filled with rumbling shouts. "We must chance it!" exclaimed Dr. Kent. "It's too far in this size. We must get larger--and if they see us, we'll fight our way out!" In the turmoil of the doomed palace